From atlas@quiknet.com Mon Dec 01 20:04:38 1997 Received: from news.quiknet.com (mail2.quiknet.com [207.183.249.4]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id UAA22209 for ; Mon, 1 Dec 1997 20:04:36 -0600 (CST) From: atlas@quiknet.com Received: from default ([207.183.241.210]) by news.quiknet.com (post.office MTA v2.0 0813 ID# 0-12335) with SMTP id AAA3835 for ; Mon, 1 Dec 1997 18:06:55 -0800 Message-ID: <34836C7F.5DB3@quiknet.com> Date: Mon, 01 Dec 1997 18:03:43 -0800 Reply-To: atlas@quiknet.com X-Mailer: Mozilla 3.01Gold (Win95; I) MIME-Version: 1.0 To: ss@tapr.org Subject: Re: [SS:1834] "Re: Mars site to add to XMAS list" References: <19971128173903.2548.qmail@sdn-ts-001pakpru05.dialsprint.net> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Lisa B. wrote: > > Please forward to friends and bookmark for Christmas shopping... > > http://www.martianconsulate.com > > Use my code "18310SST" for online discounts when ordering. > > - Lisa > > >> On Wednesday, November 26, 1997, lisabnkrft@worldnet.att.net wrote: > >> > >> Joan, > >> > >> ... here's that site doing the Mars "Land Claims": > >> > >> http://www.martianconsulate.com > >> > >> I bought one for Bill's birthday last month. He was thrilled it > > > Thanks! Cool site -- I sent it around the office :) Never too > > many Martians around -- keeps the UFO abduction rate to a minumum!!! > > See you on Tuesday at the bookstore. Tell Mary that she needs > > To remove your name from our mailing list, please send a message > with no lines with the subject 'REMOVE' to the address above. This list is not for spam!!! Its members have a tendency to flame. From n5jxs@tamu.edu Mon Dec 01 23:31:09 1997 Received: from mail.tamu.edu (mail.tamu.edu [128.194.103.38]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id XAA07158 for ; Mon, 1 Dec 1997 23:31:07 -0600 (CST) Received: from gjc (pvme07.cs.tamu.edu [128.194.136.38]) by mail.tamu.edu (8.8.7/8.8.7) with SMTP id XAA01487 for ; Mon, 1 Dec 1997 23:31:06 -0600 (CST) Message-ID: <3482F45B.4AC9@tamu.edu> Date: Mon, 01 Dec 1997 11:31:07 -0600 From: Gerry Creager Reply-To: n5jxs@tamu.edu Organization: Da Houst X-Mailer: Mozilla 3.01Gold (WinNT; I) MIME-Version: 1.0 To: ss@tapr.org Subject: Re: [SS:1837] Re: "Re: Mars site to add to XMAS list" References: <34836C7F.5DB3@quiknet.com> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit atlas@quiknet.com wrote: > > Lisa B. wrote: > >... > > Please forward to friends and bookmark for Christmas shopping... > > > > http://www.martianconsulate.com > > > > Use my code "18310SST" for online discounts when ordering. > > > > - Lisa > > ... > > This list is not for spam!!! > > Its members have a tendency to flame. I sent a note to ATT.net and got a reasonable response saying appropriate action had been taken. They said to forward any such problems in the future to them (postmaster@att.net) and their Abuse Team would take a particular interest in it. Regards, Gerry n5jxs@tamu.edu From wd5ivd@tapr.org Tue Dec 02 05:47:53 1997 Received: from [208.134.134.40] ([208.134.134.40]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id FAA07224 for ; Tue, 2 Dec 1997 05:47:33 -0600 (CST) Message-Id: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Date: Tue, 2 Dec 1997 05:37:06 -0600 To: " Spread Spectrum " From: "Greg Jones, WD5IVD" Subject: A few comments about recent SPAM on the list I wanted to share parts of a page maintained by Lsoft about SPAM. Please read it over and think about our lists when you do this. Visit http://www.lsoft.com/spamorama.html for the full text. Cheers - Greg, WD5IVD -------- The One Way to stop spamming forever... ...is to render it ineffective by never responding to it! How to respond to a spam If a spam gets through to your list, it will probably engender sarcastic replies (often with the spam quoted in its entirety) - and these replies will often be posted back to the list. It is therefore imperative that you make subscribers aware that when a spam occurs: * The person responsible for the spam is probably not subscribed to the list, and thus any response back to the list will fail to reach the offender. * An appropriate response to a spam is to forward a single copy of the spam to the person in charge of the site from which the spam originated ("POSTMASTER", "root", etc.), pointing out that the spammer is probably violating his site's appropriate use policies. * It is inappropriate to attempt to flood the spammer's mailbox with network mail in response. This is probably in violation of your network's appropriate use policies, and it just wastes bandwidth. Perhaps the best policy an individual subscriber can adopt toward spammers is to simply to **ignore them**, leaving the problem in the hands of list owners and newsgroup moderators, who usually have more Internet experience. If this does not work and subscribers send their complaints to the list anyway, it might be a good idea to moderate the list for a few days until the furor dies down. Finally, we would like to propose the following guidelines for reacting to unwanted solicitation on or off your lists: 1. DO NOT FLAME ON THE LIST! The spammer is probably not subscribed, so you would just be adding to the noise level. 2. Remember the name of the company that sent you the ad, and make sure never to buy anything from them. Call their corporate headquarters and let them know how much you were upset by the spam. In many cases, the companies whose products are featured in the spam acted out of ignorance and genuinely did not know that this form of advertisement was not appreciated. Educating them will make the spam company lose a customer. 3. Do not bother flaming the spammer. By the time you read the spam, his account will already have been closed, assuming it isn't a bogus account to start with. At any rate, the spammer will not bother reading people's indignant replies. Spammers are usually well aware of what they are doing, and are totally indifferent to your feelings. Replying is just a waste of your time. 4. Do not flame the service provider. It is easy to say "You shouldn't be allowing people like XXXX to get an account!", but it is impossible to implement in practice. Just as L-Soft cannot do much to monitor and control how individuals use our software once they license it, it is equally difficult for an Internet service provider to control what customers do with their accounts. Even if someone developed a psychological test that enabled service providers to detect would-be spammers in advance with 99.9% certainty, it would be a legal nightmare to put the test in operation. And it would be completely useless. All you need to spam millions of people is a free 10-day trial diskette from any major online provider. All in all, it's absolutely impossible to run a free interchange medium like the Internet without getting a number of unwanted people in the lot. There are unscrupulous people on the Internet, just as there are in the rest of the world, and there isn't much anyone can do about it, because until they speak up they're just an e-mail address like any other. The same goes with spammers. 5. Do not press the service provider for assistance in "tracing" the spammer. In most countries it would be unlawful for them to release this kind of information to you. However, the spammer probably provided a snail-mail address or phone number in his message, or some other contact point to place orders. If you really want to find out more about him, this is a good starting point, and it places you squarely in the realm of real world law, which is well understood by the judges and lawyers. 6. If you want to inconvenience the spammer in retaliation for the inconvenience you have suffered, by all means do go ahead, but NOT OVER THE INTERNET! Mail-bombing the provider's Postmaster address will inconvenience the provider, not the spammer, and in most cases the provider is a victim, just like you. It's going to cost them thousands of dollars in wasted manpower just to discard all the flamage they will receive. Instead, what you should do is use the real world contact info that was provided with the advertisement. This will actually reach the spammer, because this is where he is hoping to receive the checks. Yes, it means you will have to use a real world communication medium, but that's your only option. The hard reality is that complaining over the Internet will accomplish nothing: after sending the ad, the spammer is gone from the Internet. Orders will be placed using real world methods and that is your only means of reaching the spammer from then on. 7. When accusing people or companies in public, make sure to check your facts carefully before pressing the SEND button. Remember how spamming works: the spammer abuses the computer resources and manpower of hundreds of thousands of sites worldwide to deliver his advertisement. The victims are you, us, and just about everyone on the Internet. Yes, even people whose name or hostname is mentioned in the mail header are likely to be victims; spammers have no qualms about forging mail, and even when they don't, it still doesn't mean the parties involved had knowledge of the spammer's activities and will share the profits. So, if you have to make an assumption, it should be that the people involved in the delivery of the message are victims, just like you, except that the spam will waste even more time for them than for you. The last thing you need, when you have just spent four hours answering spam complaints from (other) victims, is to see a message where someone accuses you and/or your employer of being the master mind of organized spamming and suggests that you should be shot for the public good, or at least that someone should send the FBI to your house and have you put under arrest, with dozens of messages agreeing with the previous one or suggesting even more barbaric forms of punishment. In fact, such messages are taken seriously by some of the people they target and may result in serious psychological trauma. They may also result in a lawyer or police officer giving you a phone call, when you did not really mean what you were typing. So far spamming has yet to result in human death; please, let's keep it this way. ---- Segments taken from http://www.lsoft.com/spamorama.html ----- Greg Jones, WD5IVD Austin, Texas wd5ivd@tapr.org http://www.tapr.org/~wd5ivd From mac@Wireless.Com Wed Dec 03 15:53:45 1997 Received: from ns1.culver.net (mac@ns1.culver.net [206.13.40.10]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id PAA17588 for ; Wed, 3 Dec 1997 15:53:43 -0600 (CST) Received: from localhost (mac@localhost) by ns1.culver.net (8.8.5/8.8.5) with SMTP id OAA22748 for ; Wed, 3 Dec 1997 14:03:48 -0800 (PST) Date: Wed, 3 Dec 1997 14:03:47 -0800 (PST) From: Mike Cheponis X-Sender: mac@ns1.culver.net To: ss@tapr.org Subject: Philips Semiconductors Delivers Complete Vestigial Side Band Solution For Digital TV (And other things...) Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII I thought this might be of interest to people on this list. It doesn't take much imagination to think of ways to use these kinds of components... -Mike K3MC ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (PHILIPS-SEMICONDUCTORS) Philips Semiconductors Delivers Complete Vestigial Side Band Solution For Digital TV (Business Wire; 12/03/97) Business Editors/Computer Writers SUNNYVALE, Calif.--(BUSINESS WIRE)--Dec. 3, 1997-- VSB Tuner Front End and Channel Decoder Chipset Provides Complete Solution For Emerging DTV Standards in the US and Abroad Continuing its tradition of leadership in the television systems market, Philips Semiconductors today announced a complete chipset design for handling Vestigial Side Band (VSB) signals for Digital TV. Initially being targeted at the American market because of its full compliance with the recently announced ATSC (Advanced Television Systems Committee) formats for Digital TV, the new chipset consists of the Philips TDA9829T or TDA9819 VSB IF downconverters, and the TDA8960 VSB integrated demodulator and decoder. The Philips VSB chipset is capable of processing terrestrial or cable DTV signals and converting them to the stage of a digital MPEG transport stream that can then be used in a personal computer, television or hybrid set top box device. In addition to its compliance with the emerging American standards for DTV, the Philips VSB solution will be available for other parts of the world as relevant standards are determined using the experience gained from pioneering the US marketplace. "Our design provides a complete system solution to handle the initial part of VSB Digital TV signals," explained Guenther Dengel, Philips Semiconductors' managing director for the Philips Consumer IC group. "This is generating a lot of interest, particularly from major computer manufacturers who are keen to integrate DTV into PCs. Naturally, we can also provide ICs to handle the MPEG stream thereafter for whatever application they may be working on. For PC applications, the MPEG transport stream can be fed into a graphics controller, TriMedia(tm) processor or PCI bus master IC." About the Philips TDA9819 and TDA9829T Downconverters The Philips TDA9819 and TDA9829T downconverters work on IF frequencies from 38.9 MHz to 45.75 MHz, to handle the terrestrial applications of the standard 6 MHz VHF/UHF terrestrial TV channels (TV channels 2 to 69 in the US) and similarly, for cable applications, the standard 6 MHz VHF/UHF cable TV channels. They provide true synchronous demodulation with active carrier regeneration, very linear demodulation, good intermodulation figures, reduced harmonics and excellent pulse response. Both downconverters are based on a design consisting of three AC-coupled, differentiator amplifier stages, with each differential stage comprising a feedback network controlled by emitter degeneration to control the IF gain. The TDA9819 provides the additional feature of being able to accept both digital video and analog TV input. The TDA9819 is available now in a 32 pin SDIP package and is priced at approximately $2.82 in quantities of 10,000, while the TDA9829T will be available in early 1998 in a 20 pin SO package, priced at approximately $2.05 in similar volumes. About the TDA8960 Integrated Demodulator and Decoder The Philips TDA8960 is an 8-VSB demodulator and decoder that handles the channel decoding prior to the signals going to the source decoder for MPEG decoding. It functions as a one chip ATSC-compliant demodulator and concatenated trellis (Viterbi)/Reed-Solomon decoder with de-interleaver and descrambler. Adaptive equalization is performed based on the use of the ATSC field sync (trained equalization) and/or the 8-VSB data itself (blind equalization). It is also one of the first such devices to have a Forward Error Corrector (FEC) integrated onto the IC and to generate the Nyquist slope digitally rather than via the Surface Acoustic Wave (SAW) filter. The IC requires a single "low IF" passband signal centered at half the 8- VSB symbol rate of 5.38 MHz as an input and provides 8-bit wide MPEG2 transport packet data at the output. It requires a single clock frequency, which is equal to twice the 8-VSB symbol rate. Most of the loop components needed to recover the data from the received symbols are internal. The only required external loop components are a low-speed DAC (Digital to Analog Converter) and VCXO (Voltage Controlled Crystal Oscillator) for the symbol timing recovery and an op amp integrator for the AGC (Automatic Gain Control). Loop parameters of the clock and carrier recovery can be controlled by I2C. The TDA8960 will be available in a 64 pin QFP in early 1998 and is priced at approximately $18 in quantities of 100,000 units. Philips Semiconductors, Inc., a subsidiary of Philips Electronics North America and an affiliate of Philips Electronics NV, headquartered in Eindhoven, The Netherlands, is the ninth largest semiconductor supplier in the world. Philips Semiconductors' innovations in digital audio, video and mobile technology position the company as a leader in the consumer, multimedia and wireless communications markets. Sales offices are located in all major markets around the world and are supported by regional customer applications labs. Additional information on Philips Semiconductors can be found on the home page at www.semiconductors.philips.com or by calling 1-800-447-1500 ext. 1486. From dewayne@warpspeed.com Thu Dec 04 17:29:44 1997 Received: from warpspeed.com (WA8DZP@odo.warpspeed.com [204.118.182.20]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id RAA10582; Thu, 4 Dec 1997 17:29:40 -0600 (CST) Received: from [192.168.1.2] by warpspeed.com with ESMTP (Eudora Internet Mail Server 2.0); Thu, 4 Dec 1997 14:26:16 -0800 Message-Id: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Date: Thu, 4 Dec 1997 14:25:36 -0800 To: ss@tapr.org, ss-sta@tapr.org From: Dewayne Hendricks Subject: TAPR SS STA Status The TAPR SS STA was renewed today by the FCC for another six months. As some of you may be aware, there have been a LOT of changes at the FCC of late and although we submitted our request for renewal before the deadline, it has taken this long for them to final issue the grant. There was no lapse in the STA however, as once you have an application on-file, then the current authorization remains in effect until the Commission takes explicit action on the request. -- Dewayne Chair TAPR Regulatory Affairs Committee -- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Dewayne Hendricks, WA8DZP ! Internet: dewayne@warpspeed.com Warp Speed Imagineering ! Packet Radio: WA8DZP @ K3MC.#NOCAL.CA.USA.NOAM 43730 Vista Del Mar ! WWW: Fremont, CA 94539-3204 ! Fax: (510) 770-9854 ! ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ From dewayne@warpspeed.com Thu Dec 04 19:07:36 1997 Received: from warpspeed.com (WA8DZP@odo.warpspeed.com [204.118.182.20]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id TAA24544 for ; Thu, 4 Dec 1997 19:07:27 -0600 (CST) Received: from [192.168.1.2] by warpspeed.com with ESMTP (Eudora Internet Mail Server 2.0); Thu, 4 Dec 1997 17:07:22 -0800 Message-Id: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Date: Thu, 4 Dec 1997 17:07:12 -0800 To: ss@tapr.org From: Dewayne Hendricks Subject: WAVERIDER READIES LAST MILE SOLUTION LAUNCH Note: I am posting this to the SS list because I thought that it would be of general interest. This product offering, if indeed it can do all that they say, at the price point they claim, makes it a cut above the rest of the Part 15 products now on the market. BTW, their website is . Check it out! -- Dewayne WAVERIDER READIES LAST MILE SOLUTION LAUNCH by Geoff Livingston Canadian-based WaveRider is readying a 1998 wide-scale deployment of its Last Mile Solution, a wireless solution for Internet service providers (ISPs) who want to feed broadband hungry subscribers more bandwidth. With adjustable speeds ranging between 40.9 and 512 Kbps, ISPs can offer as many as 3,072 subscribers an affordable solution to wireline services. The WaveRider High Speed End User Modem is no larger than contemporary external modems and has a suggested cost of $249. In addition, the modem never turns off, instead it enters an idle period when not in use. Reactivating takes 0.5 seconds. Users are guaranteed security thanks to the incorporation of frequency hopping, protocol authentication and a transport layer into the Last Mile Solution. "Using wireless for the last mile is clearly the most effective way to deliver expanded bandwidth without costly fixed plant upgrades," said Scott Goldman, CEO of The Goldman Group. "The cost for a head-end unit ($60K) will preclude small ISPs from providing it, although they could resell on systems that do offer it." "We developed the WaveRider solution because we needed to provide a local school district with high speed connectivity," said Stephen Grant, research and development CEO of WaveRider. "The other solutions available were not cost effective for the amount of speed needed. By creating a wireless solution, we also created a cost-effective system that offered high-speed access." WaveRider Employs Unlicensed Spectrum WaveRider will be implementing an alpha test in Salmon Arm, British Columbia with 100 modems. The alpha test is scheduled for the first quarter of 1998. Wide-scale deployment will occur as soon as WaveRider is satisfied with the quality and performance of the system -- presumably the first half of 1998. The system uses unlicensed bands, using the bulk of the spectrum available in the Industry, Science and Medical bands (902-928 MHz). Broadcasting combines digital signal processing (DSP) and a TDMA-based approach. The combination of DSP and complex Frequency Hopping Spread Spectrum gives inherent security to the system and protects users against the possibility of interference. "Using frequency hopping techniques is a smart idea -- but will seem even smarter as we go through time and those unlicensed bands become increasingly congested," Goldman said. The company should probably be making contingency plans for use of other dedicated frequencies, or maybe doing a joint venture with someone like Winstar or an LMDS licensee to get dedicated frequencies." To create the Last Mile Solution(tm), ISPs and/or carriers need only to set up the Network Access Point (NAP) server to establish a covering range of 4.26 miles. Using WaveRider Data Relays and Data Repeaters, operators can expand the wide-area wireless network with additional footprints up to 10.96 miles. ISPs have the ability to offer incremental services. For example, users may purchase 40.9 Kbps for $20 a month, 80 Kbps for $30, etc. ISPs can offer wireless ethernet or direct packet data connectivity. "The head-end investment for an ISP costs about $60,000," Grant said. "That includes antennas and on-site surveys by WaveRider. It's a market ready application, but distributors must be able to support themselves. We feel experience in the wireless industry is a must." WaveRider Readies Corporate Positioning Inside Wireless Internet ventured to Canada and tested WaveRider's product. While CNN's site came up slow, other graphic laden sites came in at stunning speeds. "The Internet is only as good as its weakest link," said Grant. With a legitimate product and manufacturing capability set for widespread deployment, WaveRider is ready to take its Last Mile Solution to market in the first quarter of 1998. WaveRider has already landed two contracts, one for a system in the Arctic and a second $33.6 million Eastern European distribution deal. The European contract with Elkatel ZAO of Moscow covers an initial term of 24 months for the exclusive distribution rights in the region formerly known as the Soviet Union, Poland, the Czech Republic, Slovakia, Bulgaria and Romania. "Our distribution providers must perform to keep their exclusivity," said Bob Clarke, president of WaveRider. In addition, the company has already been gauging Canadian ISP interest. "We have done some advanced marketing," Clarke said. "When we debuted the product at a trade show in Montreal, the ISPs came through the roof. Now that we are out of the development mode, we will ship in the first year to all of North America. Coming out of the shoot, ISPs are still our targeted customers. There's more than enough business there. But long term, we might expand." To help the company in its efforts, Bruce Sinclair, former President of Dell Computer Canada and former CEO of Dell Europe was brought on board as CEO. Sinclair joined WaveRider on Nov. 18, and is participating in preparing the Last Mile Solution launch. Sinclair, who in a two-and-a-half year time frame brought computer giant Dell Europe from a $250 million per year company to one that boasted revenues in the first quarter of 1994 of $500 million, intends to take WaveRider to the heights of his previous successes. "My expertise is in managing the two greatest challenges many young high technology companies face: rapid growth and developing world-wide marketing opportunities," Sinclair said. "Based on the technology this company has developed, managing these challenges can enable WaveRider to become a leading provider of wireless data communications products world-wide." A Case of Entrepreneurial Spirit Perhaps the most interesting aspect of WaveRider's technology is the story behind the technology. Abraham Lincoln said that one of the great inventions of man has been patent law, which gives people the incentive to use "The Fire of Invention." WaveRider Research and Development CEO Stephen Grant is a clear example of that. Grant came up with the idea for the Last Mile Solution when he was implementing the original wireless solution for a school district. Grant purchased $12,000 worth of equipment from a company he will not name. When he opened up the equipment, he was disappointed. "There was certainly room for improvement," said Grant. "The actual parts in the equipment could be purchased for a much cheaper price, and the architecture and workmanship could have been done in better ways. I said to myself, 'I can do this better.'" And thus, the Last Mile Solution was born. In the spirit of Lincoln, the company has several patents pending on the improved technology. And in the long term, licensing isn't out of the question, said Grant and WaveRider President Clarke. The entrepreneurial spirit Grant displayed has followed him throughout his career. Earlier in the nineties, Grant got into the ISP business thanks to a failed consulting contract. Grant lost the contract because he was unable to provide consistent service via his ISP, which was based in rural Canada. Annoyed Grant sent out a survey to the ISP's subscribers to see what they thought about the company's service. When the ISP found out what Grant had done, it terminated his service. "I needed ISP service, so I started my own," said Grant. "I decided to provide the kind of service that I wanted when I was a subscriber. Using an intense advertising campaign in the initial start-up period, I was able to take two thirds of my rival's customer base in three months. Within six months they shut their doors." Given WaveRider's expert senior management and Grant's technological and market savvy, the future bodes well for the company. "We're cognizant of not trying to do too much right now," said Clarke. "We are looking to LMDS for the future and are having active discussions. On the network side we already have the data taken care of. Is there a voice application we can tie to it?" Only time will tell, but if previous successes are any indication, the LMDS market has an unseen player coming its way. ___________ Geoff Livingston is an editor for CommunicationsNOW and contributes to Inside Paging and WirelessNOW. In addition, Geoff is the editor of CommNOW's latest new product, Inside Wireless Internet, a newsletter publication dedicated to the provision of wireless Internet services. Stay close for more details about Inside Wireless Internet. Geoff can be reached at 202-530-7600, or you can contact him via e-mail at . Copyright 1997 by original source and CommunicationsNOW From N5RG@aol.com Fri Dec 05 11:26:46 1997 Received: from imo12.mail.aol.com (imo12.mx.aol.com [198.81.19.166]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id LAA03354 for ; Fri, 5 Dec 1997 11:26:45 -0600 (CST) From: N5RG Message-ID: Date: Fri, 5 Dec 1997 11:48:10 EST To: ss@tapr.org Subject: Re: [SS:1840] Philips Semiconductors Delivers Complete Vestigial Side Band So... Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7bit Organization: AOL (http://www.aol.com) X-Mailer: Inet_Mail_Out (IMOv11) > > VSB Tuner Front End and Channel Decoder Chipset Provides Complete > Solution For Emerging DTV Standards in the US and Abroad > Sounds like a great chipset to me. When are Amateurs going to start doing DTV? Maybe we can use this chipset for both TV and for general purpose digital applications sending anything at 19.4 mbits/sec. This could make Amateur TV extremely useful. 73, Roy W7IDM, ex N5RG From bm@lynx.ve3jf.ampr.org Fri Dec 05 15:46:18 1997 Received: from lynx.ve3jf.ampr.org (bm@pc-18446.on.rogers.wave.ca [24.112.93.218]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id PAA25857 for ; Fri, 5 Dec 1997 15:46:16 -0600 (CST) From: bm@lynx.ve3jf.ampr.org Received: (from bm@localhost) by lynx.ve3jf.ampr.org (8.8.5/8.8.5) id VAA32746 for ss@tapr.org; Fri, 5 Dec 1997 21:46:05 GMT Message-Id: <199712052146.VAA32746@lynx.ve3jf.ampr.org> Date: Fri, 5 Dec 1997 21:46:04 +0000 (GMT) To: ss@tapr.org Subject: Re: [SS:1842] WAVERIDER READIES LAST MILE SOLUTION LAUNCH In-Reply-To: X-Mailer: Ishmail 1.3.1-961106-linux MIME-Version: 1.0 Content-Type: text/plain Dewayne Hendricks wrote: > > Note: I am posting this to the SS list because I thought that it would be > of general interest. This product offering, if indeed it can do all that > they say, at the price point they claim, makes it a cut above the rest of > the Part 15 products now on the market. > BTW, their website is . Check it out! I hope this turns out to be real, but I'm a bit skeptical. Their promotion in advance of having actual product to supply is reminiscent of some purveyors of vaporhardware that have been mentioned here before. I got some email from the Waverider people a couple of months ago, asking me to add them to my LAN/MAN modem product directory. I replied saying I'd heard from others that Waverider was not delivering any hardware yet (in fact, I think they try and sell you a franchise). I asked if that had changed - I got no reply. So, caveat emptor and all that... Barry -- Barry McLarnon VE3JF/VA3TCP | Internet: bm@hydra.carleton.ca Ottawa Amateur Radio Club | AMPRnet: bm@lynx.ve3jf.ampr.org Packet Working Group | Web: http://hydra.carleton.ca From hoelzen@trib.com Fri Dec 05 16:44:08 1997 Received: from woodstock.trib.com (root@woodstock.trib.com [205.138.108.16]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id QAA29034 for ; Fri, 5 Dec 1997 16:44:06 -0600 (CST) From: hoelzen@trib.com Received: from home3.trib.com (root@home3.trib.com [205.138.108.23]) by woodstock.trib.com (8.8.5/8.7.3) with ESMTP id PAA13050 for ; Fri, 5 Dec 1997 15:44:11 -0700 Received: from jnoonan.wyoming.com (riv2p9.trib.com [207.49.40.171]) by home3.trib.com (8.7.6/8.7.3) with SMTP id PAA12232 for ; Fri, 5 Dec 1997 15:43:55 -0700 Date: Fri, 5 Dec 1997 15:43:55 -0700 Message-Id: <199712052243.PAA12232@home3.trib.com> X-Sender: hoelzen@mail1.trib.com X-Mailer: Windows Eudora Light Version 1.5.2 Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" To: ss@tapr.org Subject: Re: [SS:1843] Re: Philips Semiconductors Delivers Complete Vestigial Side Band So... At 11:34 AM 12/5/97 -0600, you wrote: >> >> VSB Tuner Front End and Channel Decoder Chipset Provides Complete >> Solution For Emerging DTV Standards in the US and Abroad >> > >Sounds like a great chipset to me. When are Amateurs going to start >doing DTV? Maybe we can use this chipset for both TV and for general >purpose digital applications sending anything at 19.4 mbits/sec. This >could make Amateur TV extremely useful. > >73, Roy W7IDM, ex N5RG > > I took a look at the data sheets (PDF file from Philips WWW page) It looks like it has all the IF blocks needed for a range of applications, not limited to ATV. Parts come in DIP or SMT and are under $3 in 10,000 quan..... 73, Chuck KC7BNC From YeawAVaxp@top1story.net Fri Dec 05 23:03:45 1997 Received: from castle.amgen.com (firewall-user@ns1.amgen.com [138.133.17.5]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id XAA27629 for ; Fri, 5 Dec 1997 23:03:43 -0600 (CST) From: YeawAVaxp@top1story.net Received: by castle.amgen.com; id VAA02372; Fri, 5 Dec 1997 21:02:10 -0800 Received: from s12.wwi-usr-atlanta.ww-interlink.net(209.12.134.207) by castle.amgen.com via smap (3.2) id xmafb9046; Fri, 5 Dec 97 21:01:47 -0800 DATE: 05 Dec 10 12:07:35 AM Message-ID: TO: Pros@time4u.net SUBJECT: Time Billing Professionals! BQE Software has recently released a new 32 bit version of its enormously popular Time/Billing software, BillQuick! Feedback on the program has been tremendous. Accountants, Architects, Attorneys, Engineers, Computer Consultants and Programmers from all over the world have found BillQuick to be the Time Billing solution they've been searching for! Make sure to visit our web site and download the easy to use, feature rich and flexible Time/Billing software. Free Download http://www.bqe.com BQE Software http://www.bqe.com P.S. Coming soon: A time and expense web interface module for BillQuick. Scheduled release: 1st quarter 1998 If you are interested in reselling BillQuick, please contact us. Generous commissions are being offered. > From vk2tds@ozemail.com.au Sat Dec 06 01:39:12 1997 Received: from oznet15.ozemail.com.au (oznet15.ozemail.com.au [203.2.192.121]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id BAA21765 for ; Sat, 6 Dec 1997 01:39:09 -0600 (CST) Received: from ozemail.com.au (slsyd22p18.ozemail.com.au [203.108.24.158]) by oznet15.ozemail.com.au (8.8.4/8.6.12) with ESMTP id SAA17602 for ; Sat, 6 Dec 1997 18:39:03 +1100 (EST) Message-ID: <3489007C.6608851F@ozemail.com.au> Date: Sat, 06 Dec 1997 18:36:29 +1100 From: Darryl Smith X-Mailer: Mozilla 4.03 [en] (Win95; I) MIME-Version: 1.0 To: ss@tapr.org Subject: Qualcomm Engineer on Bail in Rusia References: <199712060056.SAA15877@tapr.org> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit I just was a report on the news here in Australia on an Engineer from the USA in Russia charged with espionage - His crime? Having a GPS reciever. The News story inferred that the engineer was from Qualcomm, and that the company had paid $8,000,000 bail. The news showed a Garmin 45 mainly as the type used by the engineer. Maybe there will be some more in the next few days. Darryl P.S. For all those I met in the USA for the DCC, Thanks for your hospitality. If any of you are ever planning to come to Australia please send me some email; I may even be able to arrange some accomadation. From ws5jgH8Cq@bri1eflyheavy.com Sat Dec 06 08:15:03 1997 Received: from castle-smtp.amgen.com (firewall-user@ns2.amgen.com [138.133.17.7]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id IAA13045 for ; Sat, 6 Dec 1997 08:15:01 -0600 (CST) From: ws5jgH8Cq@bri1eflyheavy.com Received: by castle-smtp.amgen.com; id GAA02667; Sat, 6 Dec 1997 06:13:18 -0800 (PST) Received: from s15.wwi-usr-atlanta.ww-interlink.net(209.12.134.210) by castle-smtp.amgen.com via smap (3.2) id xmaqa7426; Sat, 6 Dec 97 06:13:11 -0800 DATE: 05 Dec 10 9:18:04 AM Message-ID: TO: profess@timebill.net SUBJECT: Time Billing Professional BQE Software has recently released a new 32 bit version of its enormously popular Time/Billing software, BillQuick! Feedback on the program has been tremendous. Accountants, Architects, Attorneys, Engineers, Computer Consultants and Programmers from all over the world have found BillQuick to be the Time Billing solution they've been searching for! Make sure to visit our web site and download the easy to use, feature rich and flexible Time/Billing software. Free Download http://www.bqe.com BQE Software http://www.bqe.com P.S. Coming soon: A time and expense web interface module for BillQuick. Scheduled release: 1st quarter 1998 If you are interested in reselling BillQuick, please contact us. Generous commissions are being offered. > From lee@jamjar.demon.co.uk Sun Dec 07 12:22:23 1997 Received: from post.mail.demon.net (post-10.mail.demon.net [194.217.242.154]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id MAA04559 for ; Sun, 7 Dec 1997 12:22:19 -0600 (CST) Received: from jamjar.demon.co.uk ([158.152.141.207]) by post.mail.demon.net id aa1002763; 7 Dec 97 18:10 GMT Message-ID: Date: Sun, 7 Dec 1997 18:06:12 +0000 To: ss@tapr.org From: Lee Wiltshire Subject: SS in UK MIME-Version: 1.0 X-Mailer: Turnpike Version 3.04 Hi all, I've been watching the SS reflector for a while, and so far I've seen nothing about any Ham Spread-Spectrum in the UK. Is there anybody out there who is doing, or is interested in doing some experiments with SS in England? The only person who I've found is James Vincent, G1PVZ, who published the results of some experiments he did some time ago. I have been reading through my licence conditions and (so far as I can see) there is nothing that precludes me from using "bandwidth expansion" techniques, so long as I don't use more bandwidth than necessary. The only pitfall is that I mustn't use secret codes or ciphers. Therefore, if I make sure that whatever PN sequences I use are published beforehand (via RadCom and a home page perhaps), then I am staying within my licence conditions. I'm interested in experimenting on 2.4GHz initially (as I have access to antennas and equipment), but am not averse to lower frequency bands (oops, I think that might stir up a hornet's nest!). So, is SS only of interest to US Hams, or are there people in the UK who are interested? Lee..... Lee Wiltshire G0IAY From djk@tobit.co.uk Sun Dec 07 15:11:44 1997 Received: from tobit.co.uk (dirku.demon.co.uk [158.152.30.189]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id PAA20939 for ; Sun, 7 Dec 1997 15:11:29 -0600 (CST) Received: (qmail 1266 invoked by uid 500); 7 Dec 1997 21:11:21 -0000 Date: Sun, 7 Dec 1997 21:11:20 +0000 (GMT) From: Dirk Koopman Reply-To: djk@tobit.co.uk To: ss@tapr.org Subject: Re: [SS:1849] SS in UK In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII On Sun, 7 Dec 1997, Lee Wiltshire wrote: > Hi all, > > I've been watching the SS reflector for a while, and so far I've seen > nothing about any Ham Spread-Spectrum in the UK. > > Is there anybody out there who is doing, or is interested in doing some > experiments with SS in England? The only person who I've found is James > Vincent, G1PVZ, who published the results of some experiments he did > some time ago. > > I have been reading through my licence conditions and (so far as I can > see) there is nothing that precludes me from using "bandwidth expansion" > techniques, so long as I don't use more bandwidth than necessary. The > only pitfall is that I mustn't use secret codes or ciphers. Therefore, > if I make sure that whatever PN sequences I use are published beforehand > (via RadCom and a home page perhaps), then I am staying within my > licence conditions. > > I'm interested in experimenting on 2.4GHz initially (as I have access to > antennas and equipment), but am not averse to lower frequency bands > (oops, I think that might stir up a hornet's nest!). > > So, is SS only of interest to US Hams, or are there people in the UK who > are interested? > You can add me to the list. Unfortunately, if the RA catch you doing it, you may find they have a less sympathetic interpretation of the licence! I have made the mistake of asking... Dirk -- Dirk-Jan Koopman Tel/Fax: +44 1362 696076 Mobile: +44 973 333806 Computer Consultant Email: djk@tobit.co.uk or G1TLH@GB7TLH.#35.GBR.EU "The typewriting machine, when played with expression, is no more annoying than the piano when played by a sister or near relation." --Oscar Wilde From Jason.Singleton@ATN.PNG.PO.gpt.co.uk Mon Dec 08 03:12:13 1997 Received: from cvis01.gpt.co.uk (cvis02.gpt.co.uk [195.99.244.3]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id DAA21514 for ; Mon, 8 Dec 1997 03:12:10 -0600 (CST) From: Jason.Singleton@ATN.PNG.PO.gpt.co.uk Received: from cvhp99.gpt.co.uk by cvis01.gpt.co.uk with ESMTP (SMI-8.6/GPT-01b5) id JAA25018; Mon, 8 Dec 1997 09:08:10 GMT Received: from cvvx43.gpt.co.uk. (cvvx43.gpt.co.uk) by cvhp99.gpt.co.uk with ESMTP (1.37.109.17/99-19) id AA065522140; Mon, 8 Dec 1997 09:09:00 GMT Received: from mhs-in by cvvx43 (PMDF V5.0-4 #8246) id <01IQXCF5H580001RWW@cvvx43> for ss@tapr.org; Mon, 08 Dec 1997 09:11:23 -0300 (BST) Date: Mon, 08 Dec 1997 09:04:19 -0300 (BST) Subject: RE: [SS:1850] Re: SS in UK To: ss@tapr.org Message-Id: <02B88B3481733A7C*02B88B3481733A7C#064#PONF01.GPT@SMF.gpt.co.uk> Mime-Version: 1.0 Content-Type: TEXT/PLAIN; NAME=MESSAGE.TXT Content-Transfer-Encoding: 7BIT Posting-Date: Mon, 08 Dec 1997 09:04:28 +0000 Priority: normal Hop-Count: 2 Hello everyone, Dirk-Jan Koopman wrote: >You can add me to the list. Unfortunately, if the RA catch you doing it, >you may find they have a less sympathetic interpretation of the licence! I >have made the mistake of asking... You can count me in too. I've experimented a little bit with DSSS using the Prism chipset in the ISM band at 2.45 GHz. I replaced the HSP 3824 baseband processor with an SX043 spread spectrum transceiver IC, mainly because it seemed to be easier to program and saved a couple of extra devices (IC to program the dual synthesizer for example). Results weren't too good but it was encouraging enough to start on version 2. I made the bigger mistake of asking about the licence in uk.radio.amateur... ;-) Byeee Jason Singleton G7ODQ jason.singleton@atn.png.po.gpt.co.uk From djk@tobit.co.uk Mon Dec 08 05:21:01 1997 Received: from tobit.co.uk (dirku.demon.co.uk [158.152.30.189]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id FAA26143 for ; Mon, 8 Dec 1997 05:20:58 -0600 (CST) Received: (qmail 1710 invoked by uid 500); 8 Dec 1997 11:20:54 -0000 Date: Mon, 8 Dec 1997 11:20:54 +0000 (GMT) From: Dirk Koopman Reply-To: djk@tobit.co.uk To: ss@tapr.org Subject: Re: [SS:1851] Re: SS in UK In-Reply-To: <02B88B3481733A7C*02B88B3481733A7C#064#PONF01.GPT@SMF.gpt.co.uk> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII On Mon, 8 Dec 1997 Jason.Singleton@atn.png.po.gpt.co.uk wrote: > You can count me in too. I've experimented a little bit with DSSS using > the Prism chipset in the ISM band at 2.45 GHz. I replaced the HSP 3824 > baseband processor with an SX043 spread spectrum transceiver IC, mainly > because it seemed to be easier to program and saved a couple of extra > devices (IC to program the dual synthesizer for example). Results > weren't too good but it was encouraging enough to start on version 2. Please tell us all more. Incidentally, where did you get the parts from and how much. When I tried (admittedly soon after the harris parts came out) they said they wouldn't be able to supply parts in small quantities (and they were going to charge lots anyway) > > I made the bigger mistake of asking about the licence in > uk.radio.amateur... ;-) > There is the potential for a whole thread here... but I am no longer able to comment as I have successfully avoided looking at this "news" group for nearly a year ;-) Dirk -- Dirk-Jan Koopman Tel/Fax: +44 1362 696076 Mobile: +44 973 333806 Computer Consultant Email: djk@tobit.co.uk or G1TLH@GB7TLH.#35.GBR.EU "The typewriting machine, when played with expression, is no more annoying than the piano when played by a sister or near relation." --Oscar Wilde From graham.cheater@dial.pipex.com Mon Dec 08 14:00:05 1997 Received: from monsoon.dial.pipex.net (monsoon.dial.pipex.net [158.43.128.69]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id OAA10859 for ; Mon, 8 Dec 1997 14:00:03 -0600 (CST) Received: (qmail 27805 invoked from network); 8 Dec 1997 19:59:56 -0000 Received: from ac239.du.pipex.com (HELO dial.pipex.com) (193.130.242.239) by smtp.dial.pipex.com with SMTP; 8 Dec 1997 19:59:56 -0000 Message-ID: <348C51AE.9D886207@dial.pipex.com> Date: Mon, 08 Dec 1997 19:59:42 +0000 From: Graham Cheater Organization: Sembawang Services X-Mailer: Mozilla 4.02 [en] (Win95; I) MIME-Version: 1.0 To: ss@tapr.org CC: Graham_cheater@hp.com Subject: Re: [SS:1849] SS in UK References: Content-Type: multipart/alternative; boundary="------------49A435CFD4BEC01356996257" --------------49A435CFD4BEC01356996257 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Lee, I would be most interested in taking part in any trial of SS in the UK, I am just returning to the radio after a long absence, and have had some extensive experiance with SS in the Military Satcom arena. Graham Cheater G4FUA, Bristol, UK. My Home Page (new) PS: I did approach this 'opportunity' before and found the RSGB most helpfull in clarifying the 'legal' aspects. ========================================================================== Lee Wiltshire wrote: > Hi all, > > I've been watching the SS reflector for a while, and so far I've seen > nothing about any Ham Spread-Spectrum in the UK. > > Is there anybody out there who is doing, or is interested in doing some > experiments with SS in England? The only person who I've found is James > Vincent, G1PVZ, who published the results of some experiments he did > some time ago. > > I have been reading through my licence conditions and (so far as I can > see) there is nothing that precludes me from using "bandwidth expansion" > techniques, so long as I don't use more bandwidth than necessary. The > only pitfall is that I mustn't use secret codes or ciphers. Therefore, > if I make sure that whatever PN sequences I use are published beforehand > (via RadCom and a home page perhaps), then I am staying within my > licence conditions. > > I'm interested in experimenting on 2.4GHz initially (as I have access to > antennas and equipment), but am not averse to lower frequency bands > (oops, I think that might stir up a hornet's nest!). > > So, is SS only of interest to US Hams, or are there people in the UK who > are interested? > > Lee..... > > > Lee Wiltshire G0IAY --------------49A435CFD4BEC01356996257 Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit Lee, I would be most interested in taking part in any trial of SS in the UK, I am just returning to the radio after a long absence, and have had some extensive experiance with SS in the Military Satcom arena.

Graham Cheater G4FUA, Bristol, UK.  My Home Page (new)

PS: I did approach this 'opportunity' before and found the RSGB most helpfull in clarifying the 'legal' aspects.

==========================================================================

Lee Wiltshire wrote:

Hi all,

I've been watching the SS reflector for a while, and so far I've seen
nothing about any Ham Spread-Spectrum in the UK.

Is there anybody out there who is doing, or is interested in doing some
experiments with SS in England?  The only person who I've found is James
Vincent, G1PVZ, who published the results of some experiments he did
some time ago.

I have been reading through my licence conditions and (so far as I can
see) there is nothing that precludes me from using "bandwidth expansion"
techniques, so long as I don't use more bandwidth than necessary.  The
only pitfall is that I mustn't use secret codes or ciphers.  Therefore,
if I make sure that whatever PN sequences I use are published beforehand
(via RadCom and a home page perhaps), then I am staying within my
licence conditions.

I'm interested in experimenting on 2.4GHz initially (as I have access to
antennas and equipment), but am not averse to lower frequency bands
(oops, I think that might stir up a hornet's nest!).

So, is SS only of interest to US Hams, or are there people in the UK who
are interested?

Lee.....
 

Lee Wiltshire G0IAY

  --------------49A435CFD4BEC01356996257-- From graham.cheater@dial.pipex.com Mon Dec 08 14:30:09 1997 Received: from monsoon.dial.pipex.net (monsoon.dial.pipex.net [158.43.128.69]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id OAA12817 for ; Mon, 8 Dec 1997 14:30:07 -0600 (CST) Received: (qmail 2951 invoked from network); 8 Dec 1997 20:30:05 -0000 Received: from ac239.du.pipex.com (HELO dial.pipex.com) (193.130.242.239) by smtp.dial.pipex.com with SMTP; 8 Dec 1997 20:30:05 -0000 Message-ID: <348C58C0.8F18E9F4@dial.pipex.com> Date: Mon, 08 Dec 1997 20:29:52 +0000 From: Graham Cheater Organization: Sembawang Services X-Mailer: Mozilla 4.02 [en] (Win95; I) MIME-Version: 1.0 To: ss@tapr.org CC: Graham_cheater@hp.com Subject: Re: [SS:1849] SS in UK References: Content-Type: multipart/alternative; boundary="------------325028838C30B9F6BC416897" --------------325028838C30B9F6BC416897 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Lee, I would be most interested in taking part in any trial of SS in the UK, I am just returning to the radio after a long absence, and have had some extensive experiance with SS in the Military Satcom arena. Graham Cheater G4FUA, Bristol, UK. My Home Page (new) PS: I did approach this 'opportunity' before and found the RSGB most helpfull in clarifying the 'legal' aspects. ========================================================================== Lee Wiltshire wrote: > Hi all, > > I've been watching the SS reflector for a while, and so far I've seen > nothing about any Ham Spread-Spectrum in the UK. > > Is there anybody out there who is doing, or is interested in doing some > experiments with SS in England? The only person who I've found is James > Vincent, G1PVZ, who published the results of some experiments he did > some time ago. > > I have been reading through my licence conditions and (so far as I can > see) there is nothing that precludes me from using "bandwidth expansion" > techniques, so long as I don't use more bandwidth than necessary. The > only pitfall is that I mustn't use secret codes or ciphers. Therefore, > if I make sure that whatever PN sequences I use are published beforehand > (via RadCom and a home page perhaps), then I am staying within my > licence conditions. > > I'm interested in experimenting on 2.4GHz initially (as I have access to > antennas and equipment), but am not averse to lower frequency bands > (oops, I think that might stir up a hornet's nest!). > > So, is SS only of interest to US Hams, or are there people in the UK who > are interested? > > Lee..... > > > Lee Wiltshire G0IAY --------------325028838C30B9F6BC416897 Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit Lee, I would be most interested in taking part in any trial of SS in the UK, I am just returning to the radio after a long absence, and have had some extensive experiance with SS in the Military Satcom arena.

Graham Cheater G4FUA, Bristol, UK.  My Home Page (new)

PS: I did approach this 'opportunity' before and found the RSGB most helpfull in clarifying the 'legal' aspects.

==========================================================================

Lee Wiltshire wrote:

Hi all,

I've been watching the SS reflector for a while, and so far I've seen
nothing about any Ham Spread-Spectrum in the UK.

Is there anybody out there who is doing, or is interested in doing some
experiments with SS in England?  The only person who I've found is James
Vincent, G1PVZ, who published the results of some experiments he did
some time ago.

I have been reading through my licence conditions and (so far as I can
see) there is nothing that precludes me from using "bandwidth expansion"
techniques, so long as I don't use more bandwidth than necessary.  The
only pitfall is that I mustn't use secret codes or ciphers.  Therefore,
if I make sure that whatever PN sequences I use are published beforehand
(via RadCom and a home page perhaps), then I am staying within my
licence conditions.

I'm interested in experimenting on 2.4GHz initially (as I have access to
antennas and equipment), but am not averse to lower frequency bands
(oops, I think that might stir up a hornet's nest!).

So, is SS only of interest to US Hams, or are there people in the UK who
are interested?

Lee.....
 

Lee Wiltshire G0IAY

  --------------325028838C30B9F6BC416897-- From graham.cheater@dial.pipex.com Mon Dec 08 14:35:12 1997 Received: from monsoon.dial.pipex.net (monsoon.dial.pipex.net [158.43.128.69]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id OAA13210 for ; Mon, 8 Dec 1997 14:35:10 -0600 (CST) Received: (qmail 3841 invoked from network); 8 Dec 1997 20:35:08 -0000 Received: from ac239.du.pipex.com (HELO dial.pipex.com) (193.130.242.239) by smtp.dial.pipex.com with SMTP; 8 Dec 1997 20:35:08 -0000 Message-ID: <348C59EF.CF1BEAEA@dial.pipex.com> Date: Mon, 08 Dec 1997 20:34:55 +0000 From: Graham Cheater Organization: Sembawang Services X-Mailer: Mozilla 4.02 [en] (Win95; I) MIME-Version: 1.0 To: ss@tapr.org CC: Graham_cheater@hp.com Subject: Re: [SS:1849] SS in UK References: Content-Type: multipart/alternative; boundary="------------9AF18C8B2561E64C5442B4B9" --------------9AF18C8B2561E64C5442B4B9 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Lee, I would be most interested in taking part in any trial of SS in the UK, I am just returning to the radio after a long absence, and have had some extensive experiance with SS in the Military Satcom arena. Graham Cheater G4FUA, Bristol, UK. My Home Page (new) PS: I did approach this 'opportunity' before and found the RSGB most helpfull in clarifying the 'legal' aspects. ========================================================================== Lee Wiltshire wrote: > Hi all, > > I've been watching the SS reflector for a while, and so far I've seen > nothing about any Ham Spread-Spectrum in the UK. > > Is there anybody out there who is doing, or is interested in doing some > experiments with SS in England? The only person who I've found is James > Vincent, G1PVZ, who published the results of some experiments he did > some time ago. > > I have been reading through my licence conditions and (so far as I can > see) there is nothing that precludes me from using "bandwidth expansion" > techniques, so long as I don't use more bandwidth than necessary. The > only pitfall is that I mustn't use secret codes or ciphers. Therefore, > if I make sure that whatever PN sequences I use are published beforehand > (via RadCom and a home page perhaps), then I am staying within my > licence conditions. > > I'm interested in experimenting on 2.4GHz initially (as I have access to > antennas and equipment), but am not averse to lower frequency bands > (oops, I think that might stir up a hornet's nest!). > > So, is SS only of interest to US Hams, or are there people in the UK who > are interested? > > Lee..... > > > Lee Wiltshire G0IAY --------------9AF18C8B2561E64C5442B4B9 Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit Lee, I would be most interested in taking part in any trial of SS in the UK, I am just returning to the radio after a long absence, and have had some extensive experiance with SS in the Military Satcom arena.

Graham Cheater G4FUA, Bristol, UK.  My Home Page (new)

PS: I did approach this 'opportunity' before and found the RSGB most helpfull in clarifying the 'legal' aspects.

==========================================================================

Lee Wiltshire wrote:

Hi all,

I've been watching the SS reflector for a while, and so far I've seen
nothing about any Ham Spread-Spectrum in the UK.

Is there anybody out there who is doing, or is interested in doing some
experiments with SS in England?  The only person who I've found is James
Vincent, G1PVZ, who published the results of some experiments he did
some time ago.

I have been reading through my licence conditions and (so far as I can
see) there is nothing that precludes me from using "bandwidth expansion"
techniques, so long as I don't use more bandwidth than necessary.  The
only pitfall is that I mustn't use secret codes or ciphers.  Therefore,
if I make sure that whatever PN sequences I use are published beforehand
(via RadCom and a home page perhaps), then I am staying within my
licence conditions.

I'm interested in experimenting on 2.4GHz initially (as I have access to
antennas and equipment), but am not averse to lower frequency bands
(oops, I think that might stir up a hornet's nest!).

So, is SS only of interest to US Hams, or are there people in the UK who
are interested?

Lee.....
 

Lee Wiltshire G0IAY

  --------------9AF18C8B2561E64C5442B4B9-- From graham.cheater@dial.pipex.com Mon Dec 08 14:36:59 1997 Received: from monsoon.dial.pipex.net (monsoon.dial.pipex.net [158.43.128.69]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id OAA13272 for ; Mon, 8 Dec 1997 14:36:57 -0600 (CST) Received: (qmail 4150 invoked from network); 8 Dec 1997 20:36:55 -0000 Received: from ac239.du.pipex.com (HELO dial.pipex.com) (193.130.242.239) by smtp.dial.pipex.com with SMTP; 8 Dec 1997 20:36:55 -0000 Message-ID: <348C5A5A.635F8D86@dial.pipex.com> Date: Mon, 08 Dec 1997 20:36:42 +0000 From: Graham Cheater Organization: Sembawang Services X-Mailer: Mozilla 4.02 [en] (Win95; I) MIME-Version: 1.0 To: ss@tapr.org CC: Graham_cheater@hp.com Subject: Re: [SS:1849] SS in UK References: Content-Type: multipart/alternative; boundary="------------F621E32418E1B3D9EAA864AF" --------------F621E32418E1B3D9EAA864AF Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Lee, I would be most interested in taking part in any trial of SS in the UK, I am just returning to the radio after a long absence, and have had some extensive experiance with SS in the Military Satcom arena. Graham Cheater G4FUA, Bristol, UK. My Home Page (new) PS: I did approach this 'opportunity' before and found the RSGB most helpfull in clarifying the 'legal' aspects. ========================================================================== Lee Wiltshire wrote: > Hi all, > > I've been watching the SS reflector for a while, and so far I've seen > nothing about any Ham Spread-Spectrum in the UK. > > Is there anybody out there who is doing, or is interested in doing some > experiments with SS in England? The only person who I've found is James > Vincent, G1PVZ, who published the results of some experiments he did > some time ago. > > I have been reading through my licence conditions and (so far as I can > see) there is nothing that precludes me from using "bandwidth expansion" > techniques, so long as I don't use more bandwidth than necessary. The > only pitfall is that I mustn't use secret codes or ciphers. Therefore, > if I make sure that whatever PN sequences I use are published beforehand > (via RadCom and a home page perhaps), then I am staying within my > licence conditions. > > I'm interested in experimenting on 2.4GHz initially (as I have access to > antennas and equipment), but am not averse to lower frequency bands > (oops, I think that might stir up a hornet's nest!). > > So, is SS only of interest to US Hams, or are there people in the UK who > are interested? > > Lee..... > > > Lee Wiltshire G0IAY --------------F621E32418E1B3D9EAA864AF Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit Lee, I would be most interested in taking part in any trial of SS in the UK, I am just returning to the radio after a long absence, and have had some extensive experiance with SS in the Military Satcom arena.

Graham Cheater G4FUA, Bristol, UK.  My Home Page (new)

PS: I did approach this 'opportunity' before and found the RSGB most helpfull in clarifying the 'legal' aspects.

==========================================================================

Lee Wiltshire wrote:

Hi all,

I've been watching the SS reflector for a while, and so far I've seen
nothing about any Ham Spread-Spectrum in the UK.

Is there anybody out there who is doing, or is interested in doing some
experiments with SS in England?  The only person who I've found is James
Vincent, G1PVZ, who published the results of some experiments he did
some time ago.

I have been reading through my licence conditions and (so far as I can
see) there is nothing that precludes me from using "bandwidth expansion"
techniques, so long as I don't use more bandwidth than necessary.  The
only pitfall is that I mustn't use secret codes or ciphers.  Therefore,
if I make sure that whatever PN sequences I use are published beforehand
(via RadCom and a home page perhaps), then I am staying within my
licence conditions.

I'm interested in experimenting on 2.4GHz initially (as I have access to
antennas and equipment), but am not averse to lower frequency bands
(oops, I think that might stir up a hornet's nest!).

So, is SS only of interest to US Hams, or are there people in the UK who
are interested?

Lee.....
 

Lee Wiltshire G0IAY

  --------------F621E32418E1B3D9EAA864AF-- From graham.cheater@dial.pipex.com Mon Dec 08 14:38:47 1997 Received: from monsoon.dial.pipex.net (monsoon.dial.pipex.net [158.43.128.69]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id OAA13339 for ; Mon, 8 Dec 1997 14:38:45 -0600 (CST) Received: (qmail 4352 invoked from network); 8 Dec 1997 20:38:42 -0000 Received: from ac239.du.pipex.com (HELO dial.pipex.com) (193.130.242.239) by smtp.dial.pipex.com with SMTP; 8 Dec 1997 20:38:42 -0000 Message-ID: <348C5AC5.990FD4CF@dial.pipex.com> Date: Mon, 08 Dec 1997 20:38:29 +0000 From: Graham Cheater Organization: Sembawang Services X-Mailer: Mozilla 4.02 [en] (Win95; I) MIME-Version: 1.0 To: ss@tapr.org CC: Graham_cheater@hp.com Subject: Re: [SS:1849] SS in UK References: Content-Type: multipart/alternative; boundary="------------907765673FACDD0C931EC076" --------------907765673FACDD0C931EC076 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Lee, I would be most interested in taking part in any trial of SS in the UK, I am just returning to the radio after a long absence, and have had some extensive experiance with SS in the Military Satcom arena. Graham Cheater G4FUA, Bristol, UK. My Home Page (new) PS: I did approach this 'opportunity' before and found the RSGB most helpfull in clarifying the 'legal' aspects. ========================================================================== Lee Wiltshire wrote: > Hi all, > > I've been watching the SS reflector for a while, and so far I've seen > nothing about any Ham Spread-Spectrum in the UK. > > Is there anybody out there who is doing, or is interested in doing some > experiments with SS in England? The only person who I've found is James > Vincent, G1PVZ, who published the results of some experiments he did > some time ago. > > I have been reading through my licence conditions and (so far as I can > see) there is nothing that precludes me from using "bandwidth expansion" > techniques, so long as I don't use more bandwidth than necessary. The > only pitfall is that I mustn't use secret codes or ciphers. Therefore, > if I make sure that whatever PN sequences I use are published beforehand > (via RadCom and a home page perhaps), then I am staying within my > licence conditions. > > I'm interested in experimenting on 2.4GHz initially (as I have access to > antennas and equipment), but am not averse to lower frequency bands > (oops, I think that might stir up a hornet's nest!). > > So, is SS only of interest to US Hams, or are there people in the UK who > are interested? > > Lee..... > > > Lee Wiltshire G0IAY --------------907765673FACDD0C931EC076 Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit Lee, I would be most interested in taking part in any trial of SS in the UK, I am just returning to the radio after a long absence, and have had some extensive experiance with SS in the Military Satcom arena.

Graham Cheater G4FUA, Bristol, UK.  My Home Page (new)

PS: I did approach this 'opportunity' before and found the RSGB most helpfull in clarifying the 'legal' aspects.

==========================================================================

Lee Wiltshire wrote:

Hi all,

I've been watching the SS reflector for a while, and so far I've seen
nothing about any Ham Spread-Spectrum in the UK.

Is there anybody out there who is doing, or is interested in doing some
experiments with SS in England?  The only person who I've found is James
Vincent, G1PVZ, who published the results of some experiments he did
some time ago.

I have been reading through my licence conditions and (so far as I can
see) there is nothing that precludes me from using "bandwidth expansion"
techniques, so long as I don't use more bandwidth than necessary.  The
only pitfall is that I mustn't use secret codes or ciphers.  Therefore,
if I make sure that whatever PN sequences I use are published beforehand
(via RadCom and a home page perhaps), then I am staying within my
licence conditions.

I'm interested in experimenting on 2.4GHz initially (as I have access to
antennas and equipment), but am not averse to lower frequency bands
(oops, I think that might stir up a hornet's nest!).

So, is SS only of interest to US Hams, or are there people in the UK who
are interested?

Lee.....
 

Lee Wiltshire G0IAY

  --------------907765673FACDD0C931EC076-- From graham.cheater@dial.pipex.com Mon Dec 08 14:40:27 1997 Received: from monsoon.dial.pipex.net (monsoon.dial.pipex.net [158.43.128.69]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id OAA13385 for ; Mon, 8 Dec 1997 14:40:25 -0600 (CST) Received: (qmail 4883 invoked from network); 8 Dec 1997 20:40:23 -0000 Received: from ac239.du.pipex.com (HELO dial.pipex.com) (193.130.242.239) by smtp.dial.pipex.com with SMTP; 8 Dec 1997 20:40:23 -0000 Message-ID: <348C5B2A.A058A962@dial.pipex.com> Date: Mon, 08 Dec 1997 20:40:10 +0000 From: Graham Cheater Organization: Sembawang Services X-Mailer: Mozilla 4.02 [en] (Win95; I) MIME-Version: 1.0 To: ss@tapr.org CC: Graham_cheater@hp.com Subject: Re: [SS:1849] SS in UK References: Content-Type: multipart/alternative; boundary="------------9C3566FB7F3E96B804568DEB" --------------9C3566FB7F3E96B804568DEB Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Lee, I would be most interested in taking part in any trial of SS in the UK, I am just returning to the radio after a long absence, and have had some extensive experiance with SS in the Military Satcom arena. Graham Cheater G4FUA, Bristol, UK. My Home Page (new) PS: I did approach this 'opportunity' before and found the RSGB most helpfull in clarifying the 'legal' aspects. ========================================================================== Lee Wiltshire wrote: > Hi all, > > I've been watching the SS reflector for a while, and so far I've seen > nothing about any Ham Spread-Spectrum in the UK. > > Is there anybody out there who is doing, or is interested in doing some > experiments with SS in England? The only person who I've found is James > Vincent, G1PVZ, who published the results of some experiments he did > some time ago. > > I have been reading through my licence conditions and (so far as I can > see) there is nothing that precludes me from using "bandwidth expansion" > techniques, so long as I don't use more bandwidth than necessary. The > only pitfall is that I mustn't use secret codes or ciphers. Therefore, > if I make sure that whatever PN sequences I use are published beforehand > (via RadCom and a home page perhaps), then I am staying within my > licence conditions. > > I'm interested in experimenting on 2.4GHz initially (as I have access to > antennas and equipment), but am not averse to lower frequency bands > (oops, I think that might stir up a hornet's nest!). > > So, is SS only of interest to US Hams, or are there people in the UK who > are interested? > > Lee..... > > > Lee Wiltshire G0IAY --------------9C3566FB7F3E96B804568DEB Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit Lee, I would be most interested in taking part in any trial of SS in the UK, I am just returning to the radio after a long absence, and have had some extensive experiance with SS in the Military Satcom arena.

Graham Cheater G4FUA, Bristol, UK.  My Home Page (new)

PS: I did approach this 'opportunity' before and found the RSGB most helpfull in clarifying the 'legal' aspects.

==========================================================================

Lee Wiltshire wrote:

Hi all,

I've been watching the SS reflector for a while, and so far I've seen
nothing about any Ham Spread-Spectrum in the UK.

Is there anybody out there who is doing, or is interested in doing some
experiments with SS in England?  The only person who I've found is James
Vincent, G1PVZ, who published the results of some experiments he did
some time ago.

I have been reading through my licence conditions and (so far as I can
see) there is nothing that precludes me from using "bandwidth expansion"
techniques, so long as I don't use more bandwidth than necessary.  The
only pitfall is that I mustn't use secret codes or ciphers.  Therefore,
if I make sure that whatever PN sequences I use are published beforehand
(via RadCom and a home page perhaps), then I am staying within my
licence conditions.

I'm interested in experimenting on 2.4GHz initially (as I have access to
antennas and equipment), but am not averse to lower frequency bands
(oops, I think that might stir up a hornet's nest!).

So, is SS only of interest to US Hams, or are there people in the UK who
are interested?

Lee.....
 

Lee Wiltshire G0IAY

  --------------9C3566FB7F3E96B804568DEB-- From graham.cheater@dial.pipex.com Mon Dec 08 14:43:12 1997 Received: from monsoon.dial.pipex.net (monsoon.dial.pipex.net [158.43.128.69]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id OAA13491 for ; Mon, 8 Dec 1997 14:43:11 -0600 (CST) Received: (qmail 5469 invoked from network); 8 Dec 1997 20:43:08 -0000 Received: from ac239.du.pipex.com (HELO dial.pipex.com) (193.130.242.239) by smtp.dial.pipex.com with SMTP; 8 Dec 1997 20:43:08 -0000 Message-ID: <348C5BCF.DCC09F64@dial.pipex.com> Date: Mon, 08 Dec 1997 20:42:56 +0000 From: Graham Cheater Organization: Sembawang Services X-Mailer: Mozilla 4.02 [en] (Win95; I) MIME-Version: 1.0 To: ss@tapr.org CC: Graham_cheater@hp.com Subject: Re: [SS:1849] SS in UK References: Content-Type: multipart/alternative; boundary="------------70B97A328C5086D43D59A76B" --------------70B97A328C5086D43D59A76B Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Lee, I would be most interested in taking part in any trial of SS in the UK, I am just returning to the radio after a long absence, and have had some extensive experiance with SS in the Military Satcom arena. Graham Cheater G4FUA, Bristol, UK. My Home Page (new) PS: I did approach this 'opportunity' before and found the RSGB most helpfull in clarifying the 'legal' aspects. ========================================================================== Lee Wiltshire wrote: > Hi all, > > I've been watching the SS reflector for a while, and so far I've seen > nothing about any Ham Spread-Spectrum in the UK. > > Is there anybody out there who is doing, or is interested in doing some > experiments with SS in England? The only person who I've found is James > Vincent, G1PVZ, who published the results of some experiments he did > some time ago. > > I have been reading through my licence conditions and (so far as I can > see) there is nothing that precludes me from using "bandwidth expansion" > techniques, so long as I don't use more bandwidth than necessary. The > only pitfall is that I mustn't use secret codes or ciphers. Therefore, > if I make sure that whatever PN sequences I use are published beforehand > (via RadCom and a home page perhaps), then I am staying within my > licence conditions. > > I'm interested in experimenting on 2.4GHz initially (as I have access to > antennas and equipment), but am not averse to lower frequency bands > (oops, I think that might stir up a hornet's nest!). > > So, is SS only of interest to US Hams, or are there people in the UK who > are interested? > > Lee..... > > > Lee Wiltshire G0IAY --------------70B97A328C5086D43D59A76B Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit Lee, I would be most interested in taking part in any trial of SS in the UK, I am just returning to the radio after a long absence, and have had some extensive experiance with SS in the Military Satcom arena.

Graham Cheater G4FUA, Bristol, UK.  My Home Page (new)

PS: I did approach this 'opportunity' before and found the RSGB most helpfull in clarifying the 'legal' aspects.

==========================================================================

Lee Wiltshire wrote:

Hi all, 

I've been watching the SS reflector for a while, and so far I've seen
nothing about any Ham Spread-Spectrum in the UK.

Is there anybody out there who is doing, or is interested in doing some
experiments with SS in England?  The only person who I've found is James
Vincent, G1PVZ, who published the results of some experiments he did
some time ago.

I have been reading through my licence conditions and (so far as I can
see) there is nothing that precludes me from using "bandwidth expansion"
techniques, so long as I don't use more bandwidth than necessary.  The
only pitfall is that I mustn't use secret codes or ciphers.  Therefore,
if I make sure that whatever PN sequences I use are published beforehand
(via RadCom and a home page perhaps), then I am staying within my
licence conditions.

I'm interested in experimenting on 2.4GHz initially (as I have access to
antennas and equipment), but am not averse to lower frequency bands
(oops, I think that might stir up a hornet's nest!).

So, is SS only of interest to US Hams, or are there people in the UK who
are interested?

Lee.....
 

Lee Wiltshire G0IAY

  --------------70B97A328C5086D43D59A76B-- From graham.cheater@dial.pipex.com Mon Dec 08 14:43:24 1997 Received: from monsoon.dial.pipex.net (monsoon.dial.pipex.net [158.43.128.69]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id OAA13512 for ; Mon, 8 Dec 1997 14:43:22 -0600 (CST) Received: (qmail 5499 invoked from network); 8 Dec 1997 20:43:20 -0000 Received: from ac239.du.pipex.com (HELO dial.pipex.com) (193.130.242.239) by smtp.dial.pipex.com with SMTP; 8 Dec 1997 20:43:20 -0000 Message-ID: <348C5BDB.D50964C8@dial.pipex.com> Date: Mon, 08 Dec 1997 20:43:07 +0000 From: Graham Cheater Organization: Sembawang Services X-Mailer: Mozilla 4.02 [en] (Win95; I) MIME-Version: 1.0 To: ss@tapr.org CC: Graham_cheater@hp.com Subject: Re: [SS:1849] SS in UK References: Content-Type: multipart/alternative; boundary="------------A16CEA0F206687FEF77055F6" --------------A16CEA0F206687FEF77055F6 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Lee, I would be most interested in taking part in any trial of SS in the UK, I am just returning to the radio after a long absence, and have had some extensive experiance with SS in the Military Satcom arena. Graham Cheater G4FUA, Bristol, UK. My Home Page (new) PS: I did approach this 'opportunity' before and found the RSGB most helpfull in clarifying the 'legal' aspects. ========================================================================== Lee Wiltshire wrote: > Hi all, > > I've been watching the SS reflector for a while, and so far I've seen > nothing about any Ham Spread-Spectrum in the UK. > > Is there anybody out there who is doing, or is interested in doing some > experiments with SS in England? The only person who I've found is James > Vincent, G1PVZ, who published the results of some experiments he did > some time ago. > > I have been reading through my licence conditions and (so far as I can > see) there is nothing that precludes me from using "bandwidth expansion" > techniques, so long as I don't use more bandwidth than necessary. The > only pitfall is that I mustn't use secret codes or ciphers. Therefore, > if I make sure that whatever PN sequences I use are published beforehand > (via RadCom and a home page perhaps), then I am staying within my > licence conditions. > > I'm interested in experimenting on 2.4GHz initially (as I have access to > antennas and equipment), but am not averse to lower frequency bands > (oops, I think that might stir up a hornet's nest!). > > So, is SS only of interest to US Hams, or are there people in the UK who > are interested? > > Lee..... > > > Lee Wiltshire G0IAY --------------A16CEA0F206687FEF77055F6 Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit Lee, I would be most interested in taking part in any trial of SS in the UK, I am just returning to the radio after a long absence, and have had some extensive experiance with SS in the Military Satcom arena.

Graham Cheater G4FUA, Bristol, UK.  My Home Page (new)

PS: I did approach this 'opportunity' before and found the RSGB most helpfull in clarifying the 'legal' aspects.

==========================================================================

Lee Wiltshire wrote:

Hi all, 

I've been watching the SS reflector for a while, and so far I've seen
nothing about any Ham Spread-Spectrum in the UK.

Is there anybody out there who is doing, or is interested in doing some
experiments with SS in England?  The only person who I've found is James
Vincent, G1PVZ, who published the results of some experiments he did
some time ago.

I have been reading through my licence conditions and (so far as I can
see) there is nothing that precludes me from using "bandwidth expansion"
techniques, so long as I don't use more bandwidth than necessary.  The
only pitfall is that I mustn't use secret codes or ciphers.  Therefore,
if I make sure that whatever PN sequences I use are published beforehand
(via RadCom and a home page perhaps), then I am staying within my
licence conditions.

I'm interested in experimenting on 2.4GHz initially (as I have access to
antennas and equipment), but am not averse to lower frequency bands
(oops, I think that might stir up a hornet's nest!).

So, is SS only of interest to US Hams, or are there people in the UK who
are interested?

Lee.....
 

Lee Wiltshire G0IAY

  --------------A16CEA0F206687FEF77055F6-- From GStory@icomply.com Mon Dec 08 16:11:31 1997 Received: from lew_prods1.icomply.com (lew_prods1.icomply.com [38.223.45.65]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id QAA19184 for ; Mon, 8 Dec 1997 16:11:29 -0600 (CST) Received: by lew_prods1.icomply.com with SMTP (Microsoft Exchange Server Internet Mail Connector Version 4.0.995.52) id <01BD03F3.9A5AF370@lew_prods1.icomply.com>; Mon, 8 Dec 1997 16:09:03 -0600 Message-ID: From: Guy Story To: "'ss@tapr.org'" Subject: Graham Cheater Date: Mon, 8 Dec 1997 16:09:02 -0600 X-Mailer: Microsoft Exchange Server Internet Mail Connector Version 4.0.995.52 Encoding: 6 TEXT I just wanted to make sure I was not having a problem with my email. I have received 8 copies of Graham's email. Has anyone else had this happen. Nothing personal Graham, never had this happen before. Guy Story, KC5GOI gstory@icomply.com From jas@hplb.hpl.hp.com Mon Dec 08 16:53:08 1997 Received: from hplb.hpl.hp.com (hplb.hpl.hp.com [15.255.59.2]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id QAA21564 for ; Mon, 8 Dec 1997 16:53:06 -0600 (CST) Received: from pooh.hpl.hp.com by hplb.hpl.hp.com; Mon, 8 Dec 1997 22:53:03 GMT Received: by pooh.hpl.hp.com (1.37.109.16/15.6+ISC) id AA080211582; Mon, 8 Dec 1997 22:53:02 GMT From: Jan Schiefer Message-Id: <199712082253.AA080211582@pooh.hpl.hp.com> Subject: Re: SS in UK? To: ss@tapr.org Date: Mon, 8 Dec 97 22:53:02 GMT In-Reply-To: <348C5BDB.D50964C8@dial.pipex.com>; from "ss@tapr.org" at Dec 8, 97 2:54 pm Mailer: Elm [revision: 70.85] This must be one of the nicest examples of recursive inclusion I have seen for a while. > Lee, I would be most interested in taking part in any trial of SS in the UK, > [..] > Graham Cheater G4FUA, Bristol, UK. My Home Page (new) What a shame, just as I am about to leave Bristol... Cheers, Jan dl5ue, g0trr -- Jan Schiefer, g0trr, jas@hpl.hp.com, HP Labs Bristol, UK. +44 117 922 8344 Finally, I discovered a way to create lines longer than 80 columns, even on term From scherewi@netcom.ca Mon Dec 08 16:53:57 1997 Received: from tor-smtp2.netcom.ca (tor-smtp2.netcom.ca [207.93.1.168]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id QAA21582 for ; Mon, 8 Dec 1997 16:53:55 -0600 (CST) Received: from netcom.ca (van-bc7-05.netcom.ca [207.181.73.69]) by tor-smtp2.netcom.ca (8.8.5/NETCOM) id RAA03387; Mon, 8 Dec 1997 17:52:05 -0500 (EST) Message-ID: <348C79F3.C603363@netcom.ca> Date: Mon, 08 Dec 1997 14:51:33 -0800 From: Shawn Cherewick Organization: Advanced Wireless Technologies X-Mailer: Mozilla 4.04 [en] (Win95; U) MIME-Version: 1.0 To: ss@tapr.org, GStory@icomply.com Subject: Re: [SS:1861] Graham Cheater References: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Hi Guy, It's not your email, I have also received 8 copies of the same message from Graham. I've never seen this happen before either. Strange? Shawn Cherewick, VE7IPX scherewi@netcom.ca. Guy Story wrote: > I just wanted to make sure I was not having a problem with my email. I > have received 8 copies of Graham's email. Has anyone else had this > happen. > Nothing personal Graham, never had this happen before. > Guy Story, KC5GOI > gstory@icomply.com From Jason.Singleton@ATN.PNG.PO.gpt.co.uk Tue Dec 09 07:10:30 1997 Received: from cvis01.gpt.co.uk (cvis02.gpt.co.uk [195.99.244.3]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id HAA04373 for ; Tue, 9 Dec 1997 07:10:26 -0600 (CST) From: Jason.Singleton@ATN.PNG.PO.gpt.co.uk Received: from cvhp99.gpt.co.uk by cvis01.gpt.co.uk with ESMTP (SMI-8.6/GPT-01b5) id NAA14407; Tue, 9 Dec 1997 13:06:20 GMT Received: from cvvx43.gpt.co.uk. (cvvx43.gpt.co.uk) by cvhp99.gpt.co.uk with ESMTP (1.37.109.17/99-19) id AA011362832; Tue, 9 Dec 1997 13:07:12 GMT Received: from mhs-in by cvvx43 (PMDF V5.0-4 #8246) id <01IQYYYKPDRK0024A6@cvvx43> for ss@tapr.org; Tue, 09 Dec 1997 13:09:15 -0300 (BST) Date: Tue, 09 Dec 1997 13:09:50 -0300 (BST) Subject: RE: [SS:1852] Re: SS in UK To: ss@tapr.org Message-Id: Mime-Version: 1.0 Content-Type: TEXT/PLAIN; NAME=MESSAGE.TXT Content-Transfer-Encoding: 7BIT Posting-Date: Tue, 09 Dec 1997 13:09:55 +0000 Priority: normal Hop-Count: 2 Hi everyone, Dirk-Jan Koopman write: >Please tell us all more. Incidentally, where did you get the parts from >and how much. When I tried (admittedly soon after the harris parts came >out) they said they wouldn't be able to supply parts in small quantities >(and they were going to charge lots anyway) Okay, here goes... Costs --------- The 2 Prism chipsets were samples obtained around June 1996. Last price quote I saw was $60 for quantities of 10,000. From Harris Semiconductor themselves[1]. The SX043 Transceivers were bought from a company called Sabre Advanced Microelectronics [2]. The price I was quoted was 50 ukp each. This was in January 1997. The data rate used was 256,000 bits / second - an odd rate but as specfied in the data sheet for the SX043. PN Code length selected was 31 bit giving a process gain of around 14.4dB and a main lobe bandwidth of around 16.3 MHz. Modulation used was BPSK. I decided to have 4 channels available on this - at 16.3 MHz steps within the 2.4 - 2.4835 GHz ISM band. The chipset required 2 local oscillators - SHF and UHF. The SHF VCO I used was centred around 2.25 GHz. The UHF VCO was on 420 MHz. This was just an old VCO ripped out of a mobile phone so didn't really cost anything. No real reason why a VCO is needed for the UHF side except that it was available and didn't require as much tuning and board space as a normal crystal oscillator / multiplier circuit. This was divided by 2 inside the Harris I/Q Modem. Bandpass filters used were typical WLAN types appearing in the Cirkit catalogue about a year ago. I mentioned replacing the HSP 3824. This was done mainly because it needed extra devices (Buffer mem, AMD PCNET? device) to convert between the serial data stream and parallel data for the interface to a PC (via an ISA interface). The SX043 I replaced it with could do something like this on chip. It also had better documentation and clearly explained how acquisition and tracking the incoming signal could be achieved. Finally it had a serial bus which was designed to program frequency synthesizers, this meant I could put channel selection inside the PC and not need an EPROM or a PIC to program the synthesizer. Everything was put onto PTFE PCB material with a dielectric constant of 3.2. The PC interface was only a couple of '245 buffers connected to an 8 bit ISA card with some address decoding giving a choice of 2 address ranges. I should point out that the transceiver was outside of the PC with the ISA interface connected by a very short ribbon cable. (YIKES! - tried to minimise crosstalk as much as possible:-). The software written was very basic. My intention was not to provide a network driver but just to demonstrate DSSS. Therefore the software only did terminal to terminal contacts / file transfer. The software was able to program and read the status / control registers on the transceiver and change the channel as well as send and receive data. No kind of packet formatting was used - I just sent the data out the transmitter in a raw format. Packet format will come later. Antenna used was the typical omnidirectional 'rubber duck' style antenna mounted on top of the transceiver metal box. Two of these transceivers were built for demonstration in a lab. Receive performance was not very good and while I was selecting components I was warned that Prism needed a lot of software for error recovery. My main problem was that I was working on a university campus and suffering from microwave oven interference in the nearby student village. But data was being transferred across the lab! The future ---------------- Apart from getting the radio to work more reliably I want to be able to write an interface for something like UKNOS or one of its equivalents. I know that the direction of development seems to be more towards Win95, for now I just want to make the transceiver work in the present network. The ability to change channel in software could give something a bit more flexible on busy channels. That's about all I can remember sitting here at work... [1] Harris Semiconductor. Tel +44 (0) 1189 32 85 85. [2] Sabre Advanced Microelectronics. sales@sabreadv.demon.co.uk +44 (0) 1483 35 444. They gave me a discount so I 'spose I'd better mention them :-) Byeee Jason G7ODQ jason.singleton@atn.png.po.gpt.co.uk From Jason.Singleton@ATN.PNG.PO.gpt.co.uk Tue Dec 09 09:28:50 1997 Received: from cvis01.gpt.co.uk (cvis02.gpt.co.uk [195.99.244.3]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id JAA09434 for ; Tue, 9 Dec 1997 09:28:46 -0600 (CST) From: Jason.Singleton@ATN.PNG.PO.gpt.co.uk Received: from cvhp99.gpt.co.uk by cvis01.gpt.co.uk with ESMTP (SMI-8.6/GPT-01b5) id PAA16637; Tue, 9 Dec 1997 15:24:44 GMT Received: from cvvx43.gpt.co.uk. (cvvx43.gpt.co.uk) by cvhp99.gpt.co.uk with ESMTP (1.37.109.17/99-19) id AA019285793; Tue, 9 Dec 1997 13:56:33 GMT Received: from mhs-in by cvvx43 (PMDF V5.0-4 #8246) id <01IQZ0Q2CYE80023TN@cvvx43> for ss@tapr.org; Tue, 09 Dec 1997 13:58:55 -0300 (BST) Date: Tue, 09 Dec 1997 13:55:12 -0300 (BST) Subject: RE: [SS:1864] Re: SS in UK To: ss@tapr.org Message-Id: <6A4A8D3481733A7C*6A4A8D3481733A7C#064#PONF01.GPT@SMF.gpt.co.uk> Mime-Version: 1.0 Content-Type: TEXT/PLAIN; NAME=MESSAGE.TXT Content-Transfer-Encoding: 7BIT Posting-Date: Tue, 09 Dec 1997 13:55:18 +0000 Priority: normal Hop-Count: 2 Damn, sorry about the line lengths - I assumed Microsoft Mail was intelligent enough to deal with them. Here is an easier read version. Hi everyone, Dirk-Jan Koopman wrote: >Please tell us all more. Incidentally, where did you get the parts from >and how much. When I tried (admittedly soon after the harris parts came >out) they said they wouldn't be able to supply parts in small quantities >(and they were going to charge lots anyway) Okay, here goes... Costs --------- The 2 Prism chipsets were samples obtained around June 1996. Last price quote I saw was $60 for quantities of 10,000. From Harris Semiconductor themselves[1]. The SX043 Transceivers were bought from a company called Sabre Advanced Microelectronics [2]. The price I was quoted was 50 ukp each. This was in January 1997. The data rate used was 256,000 bits / second - an odd rate but as specfied in the data sheet for the SX043. PN Code length selected was 31 bit giving a process gain of around 14.4dB and a main lobe bandwidth of around 16.3 MHz. Modulation used was BPSK. I decided to have 4 channels available on this - at 16.3 MHz steps within the 2.4 - 2.4835 GHz ISM band. The chipset required 2 local oscillators - SHF and UHF. The SHF VCO I used was centred around 2.25 GHz. The UHF VCO was on 420 MHz. This was just an old VCO ripped out of a mobile phone so didn't really cost anything. No real reason why a VCO is needed for the UHF side except that it was available and didn't require as much tuning and board space as a normal crystal oscillator / multiplier circuit. This was divided by 2 inside the Harris I/Q Modem. Bandpass filters used were typical WLAN types appearing in the Cirkit catalogue about a year ago. I mentioned replacing the HSP 3824. This was done mainly because it needed extra devices (Buffer mem, AMD PCNET? device) to convert between the serial data stream and parallel data for the interface to a PC (via an ISA interface). The SX043 I replaced it with could do something like this on chip. It also had better documentation and clearly explained how acquisition and tracking the incoming signal could be achieved. Finally it had a serial bus which was designed to program frequency synthesizers, this meant I could put channel selection inside the PC and not need an EPROM or a PIC to program the synthesizer. Everything was put onto PTFE PCB material with a dielectric constant of 3.2. The PC interface was only a couple of '245 buffers connected to an 8 bit ISA card with some address decoding giving a choice of 2 address ranges. I should point out that the transceiver was outside of the PC with the ISA interface connected by a very short ribbon cable. (YIKES! - tried to minimise crosstalk as much as possible:-). The software written was very basic. My intention was not to provide a network driver but just to demonstrate DSSS. Therefore the software only did terminal to terminal contacts / file transfer. The software was able to program and read the status / control registers on the transceiver and change the channel as well as send and receive data. No kind of packet formatting was used - I just sent the data out the transmitter in a raw format. Packet format will come later. Antenna used was the typical omnidirectional 'rubber duck' style antenna mounted on top of the transceiver metal box. Two of these transceivers were built for demonstration in a lab. Receive performance was not very good and while I was selecting components I was warned that Prism needed a lot of software for error recovery. My main problem was that I was working on a university campus and suffering from microwave oven interference in the nearby student village. But data was being transferred across the lab! The future ---------------- Apart from getting the radio to work more reliably I want to be able to write an interface for something like UKNOS or one of its equivalents. I know that the direction of development seems to be more towards Win95, for now I just want to make the transceiver work in the present network. The ability to change channel in software could give something a bit more flexible on busy channels. That's about all I can remember sitting here at work... [1] Harris Semiconductor. Tel +44 (0) 1189 32 85 85. [2] Sabre Advanced Microelectronics. sales@sabreadv.demon.co.uk +44 (0) 1483 35 444. They gave me a discount so I 'spose I'd better mention them :-) Byeee Jason G7ODQ jason.singleton@atn.png.po.gpt.co.uk From LNUSSAT.JMALMBER@eds.com Tue Dec 09 10:23:33 1997 Received: from ns2.eds.com (ns2.eds.com [199.228.142.78]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id KAA13123 for ; Tue, 9 Dec 1997 10:23:30 -0600 (CST) From: LNUSSAT.JMALMBER@eds.com Received: from nnsp.eds.com (nnsp2.eds.com [199.228.143.130]) by ns2.eds.com (8.8.6/8.8.5) with ESMTP id LAA30905 for ; Tue, 9 Dec 1997 11:23:26 -0500 (EST) Received: from DNET.EDS.COM (dnet.eds.com [130.174.18.173]) by nnsp.eds.com (8.8.5/8.8.5) with SMTP id LAA09731 for ; Tue, 9 Dec 1997 11:22:55 -0500 (EST) Received: by DNET.EDS.COM (Soft-Switch LMS 2.0) with snapi via DMNCEC id 0095000007098087; Tue, 9 Dec 1997 11:21:33 -0500 To: ss Subject: Re: [SS:1847] Qualcomm Engineer on Bail in Rusia Message-ID: <0095000007098087000002L072*@MHS> Date: Tue, 9 Dec 1997 11:21:33 -0500 Sorry for sending this to the mailing list, but my E-Mail service does not show me any orginating E-MAIL address, or provide me with any way of getting them. All messages on this list show up to me as TO: SS[INET.SS]@DIAMOND FROM: SS[INET.SS]@DIAMOND. A ham from Maury County Tn is now in Austraila. Darryl, if you can send me your E-MAIL address, I will find out his and send it to you. Thankyou, John Malmberg Email: LNUSSAT.jmalmber@GMEDS.COM P.S. This E-mail system does not like attachments. It generates 4 complaint messages to me for every attachment that I receive. From dvanhorn@cedar.net Tue Dec 09 11:23:12 1997 Received: from www.cedar.net (www.cedar.net [204.95.210.1]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id LAA17406 for ; Tue, 9 Dec 1997 11:23:10 -0600 (CST) Received: from xenu.iquest.net (and-007-13.iquest.net [206.53.225.45]) by www.cedar.net (8.8.5/SCO5) with SMTP id LAA02036 for ; Tue, 9 Dec 1997 11:27:44 -0600 (CST) Message-Id: <199712091727.LAA02036@www.cedar.net> From: "David VanHorn" To: Subject: Re: [SS:1865] Re: SS in UK Date: Tue, 9 Dec 1997 12:17:07 -0500 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 4.71.1712.3 X-MimeOLE: Produced By Microsoft MimeOLE V4.71.1712.3 begin 666 MESSAGE.TXT M#0HM+2TM+4]R:6=I;F%L($UE2P@1&5C96UB97(@,#DL(#$Y.3<@,3(Z M,C8@4$T-"E-U8FIE8W0Z(%M34SHQ.#8U72!293H@4U,@:6X@54L-"@T*#0H_ M/S\_/S\_/S0_/S\_/S\_/S\_/S\_/S\_/S\_/S\_/S\_/S\_/S\_/S\_/S\_ M/S\_/S\_/S\_/S\_/S\_/S\_/S\_/S\_/S\_/S\_/S\_/S\_/S\_/S\_/S\_ M/S\_/S\_/S\_/S\_/S\_/S\_/S\_/S\_/S\_-3\T/S\_/S\_/S\_/S\_/S\_ M/S\_/S\_/S\_/S\_/S\_/S\_/S\_/S\_/S\_/S\_/S\_/S\_/S\_/S\_/S\- J"@T*07)E('EO=2!P;W-T:6YG(&EN('-P; Tue, 9 Dec 1997 13:35:05 -0600 (CST) Received: from jamjar.demon.co.uk ([158.152.141.207]) by post.mail.demon.net id ac1028569; 9 Dec 97 19:18 GMT Message-ID: Date: Tue, 9 Dec 1997 19:16:45 +0000 To: ss@tapr.org From: Lee Wiltshire Subject: Re: [SS:1861] Graham Cheater In-Reply-To: MIME-Version: 1.0 X-Mailer: Turnpike Version 3.04 I got it several times too! Thought for a second I was being flamed! In message , Guy Story writes >I just wanted to make sure I was not having a problem with my email. I >have received 8 copies of Graham's email. Has anyone else had this >happen. > Nothing personal Graham, never had this happen before. >Guy Story, KC5GOI >gstory@icomply.com > -- Lee Wiltshire G0IAY From lee@jamjar.demon.co.uk Tue Dec 09 14:19:43 1997 Received: from post.mail.demon.net (post-10.mail.demon.net [194.217.242.154]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id OAA04070 for ; Tue, 9 Dec 1997 14:19:40 -0600 (CST) Received: from jamjar.demon.co.uk ([158.152.141.207]) by post.mail.demon.net id aa1006131; 9 Dec 97 20:04 GMT Message-ID: Date: Tue, 9 Dec 1997 20:03:13 +0000 To: ss@tapr.org From: Lee Wiltshire Subject: SS in UK MIME-Version: 1.0 X-Mailer: Turnpike Version 3.04 Well, it sounds like at least one person has got further than I have! I must admit to not reading uk.radio.amateur for some time, as the last time I downloaded anything from that particular newsgroup, it was full of snipe and counter-snipe! (In other words a complete waste of bandwidth!) My first plan was to experiment with direct sequence, probably using the Stanford Telecom chipset (if I can get hold of them at a reasonable price!), although there seems to be a fair amount of choice now. Is anybody out there (US or UK) able to get hold of these chips at reasonable costs? (Is there a possibility for a TAPR group purchase?) The work that Jason has done sounds interesting, I guess most of it was done at University? On the subject of licencing, the impression I got when talking to various RSGB comittee members was that the reason nothing has been written down (in the licence) is that no-one has really asked. I'll keep my eye on this newsgroup and see what happens. Lee Lee Wiltshire G0IAY lee@jamjar.demon.co.uk From graham.cheater@dial.pipex.com Tue Dec 09 15:55:18 1997 Received: from monsoon.dial.pipex.net (monsoon.dial.pipex.net [158.43.128.69]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id PAA08432 for ; Tue, 9 Dec 1997 15:55:16 -0600 (CST) Received: (qmail 21206 invoked from network); 9 Dec 1997 21:55:14 -0000 Received: from ad068.du.pipex.com (HELO dial.pipex.com) (193.130.243.68) by smtp.dial.pipex.com with SMTP; 9 Dec 1997 21:55:14 -0000 Message-ID: <348DBE35.1342F73D@dial.pipex.com> Date: Tue, 09 Dec 1997 21:55:01 +0000 From: Graham Cheater Organization: Sembawang Services X-Mailer: Mozilla 4.02 [en] (Win95; I) MIME-Version: 1.0 To: ss@tapr.org CC: lee@jamjar.demon.co.uk Subject: Re: [SS:1861] et al. Appologies! References: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit When responding to the posting from Lee Wiltshire G0IAY, [SS in the UK] Netscape Communicator gave me an error-msg: " Can't open 'Sent' mail file, Message not sent!" So, being kinda gullable, I believed it.......... The remaining seven copies of the same message wee my attemps to fix the problem and get the message sent!. Truely sorry, this was not a 'flaming' attempt. Lee I will follow up on the latest posting later in the week, busy right now. Regards grahamC G4FUA ( ONE Copy I HOPE!) graham.cheater@dial.pipex.com From Jason.Singleton@ATN.PNG.PO.gpt.co.uk Wed Dec 10 08:09:45 1997 Received: from cvis01.gpt.co.uk (cvis02.gpt.co.uk [195.99.244.3]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id IAA21066 for ; Wed, 10 Dec 1997 08:09:42 -0600 (CST) From: Jason.Singleton@ATN.PNG.PO.gpt.co.uk Received: from cvhp99.gpt.co.uk by cvis01.gpt.co.uk with ESMTP (SMI-8.6/GPT-01b5) id OAA00691; Wed, 10 Dec 1997 14:05:37 GMT Received: from cvvx43.gpt.co.uk. (cvvx43.gpt.co.uk) by cvhp99.gpt.co.uk with ESMTP (1.37.109.17/99-19) id AA223882787; Wed, 10 Dec 1997 14:06:27 GMT Received: from mhs-in by cvvx43 (PMDF V5.0-4 #8246) id <01IR0FB9D4N4002F16@cvvx43> for ss@tapr.org; Wed, 10 Dec 1997 14:08:37 -0300 (BST) Date: Wed, 10 Dec 1997 14:00:12 -0300 (BST) Subject: RE: [SS:1869] SS in UK To: ss@tapr.org Message-Id: <739F8E3481733A7C*739F8E3481733A7C#064#PONF01.GPT@SMF.gpt.co.uk> Mime-Version: 1.0 Content-Type: TEXT/PLAIN; NAME=MESSAGE.TXT Content-Transfer-Encoding: 7BIT Posting-Date: Wed, 10 Dec 1997 14:00:17 +0000 Priority: normal Hop-Count: 2 Hi, Lee Wiltshire G0IAY wrote: > >My first plan was to experiment with direct sequence, probably using >the Stanford Telecom chipset (if I can get hold of them at a reasonable >price!), although there seems to be a fair amount of choice now. Is >anybody out there (US or UK) able to get hold of these chips at >reasonable costs? (Is there a possibility for a TAPR group purchase?) Does the Stanford Telecom chipset deal with RF as well as the digital stuff? The suggestion for a group purchase sounds a good idea, wouldn't we need to be members of TAPR first? >The work that Jason has done sounds interesting, I guess most of it was >done at University? Yes, I started collecting info and components before my final year (1996 - 1997) Since I started the project at University it seems several more chipsets became available. After graduating I made sure the transceivers left with me! >On the subject of licencing, the impression I got when talking to >various RSGB comittee members was that the reason nothing has been >written down (in the licence) is that no-one has really asked. Ah, I assumed that because nothing was written down in the licence it was okay to do... >I'll keep my eye on this newsgroup and see what happens. Or start the ball rolling... ;-) Byeee Jason G7ODQ jason.singleton@atn.png.po.gpt.co.uk From Jason.Singleton@ATN.PNG.PO.gpt.co.uk Wed Dec 10 09:38:44 1997 Received: from cvis01.gpt.co.uk (cvis02.gpt.co.uk [195.99.244.3]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id JAA25621 for ; Wed, 10 Dec 1997 09:38:41 -0600 (CST) From: Jason.Singleton@ATN.PNG.PO.gpt.co.uk Received: from cvhp99.gpt.co.uk by cvis01.gpt.co.uk with ESMTP (SMI-8.6/GPT-01b5) id PAA02067; Wed, 10 Dec 1997 15:34:37 GMT Received: from cvvx43.gpt.co.uk. (cvvx43.gpt.co.uk) by cvhp99.gpt.co.uk with ESMTP (1.37.109.17/99-19) id AA242868127; Wed, 10 Dec 1997 15:35:27 GMT Received: from mhs-in by cvvx43 (PMDF V5.0-4 #8246) id <01IR0HY4XER4002FTR@cvvx43> for ss@tapr.org; Wed, 10 Dec 1997 15:36:42 -0300 (BST) Date: Wed, 10 Dec 1997 14:00:12 -0300 (BST) Subject: RE: [SS:1869] SS in UK To: ss@tapr.org Message-Id: <749F8E3481733A7C*749F8E3481733A7C#064#PONF01.GPT@SMF.gpt.co.uk> Mime-Version: 1.0 Content-Type: TEXT/PLAIN; NAME=MESSAGE.TXT Content-Transfer-Encoding: 7BIT Posting-Date: Wed, 10 Dec 1997 14:03:34 +0000 Priority: normal Hop-Count: 2 Hi, Lee Wiltshire G0IAY wrote: > >My first plan was to experiment with direct sequence, probably using >the Stanford Telecom chipset (if I can get hold of them at a reasonable >price!), although there seems to be a fair amount of choice now. Is >anybody out there (US or UK) able to get hold of these chips at >reasonable costs? (Is there a possibility for a TAPR group purchase?) Does the Stanford Telecom chipset deal with RF as well as the digital stuff? The suggestion for a group purchase sounds a good idea, wouldn't we need to be members of TAPR first? >The work that Jason has done sounds interesting, I guess most of it was >done at University? Yes, I started collecting info and components before my final year (1996 - 1997) Since I started the project at University it seems several more chipsets became available. After graduating I made sure the transceivers left with me! >On the subject of licencing, the impression I got when talking to >various RSGB comittee members was that the reason nothing has been >written down (in the licence) is that no-one has really asked. Ah, I assumed that because nothing was written down in the licence it was okay to do... >I'll keep my eye on this newsgroup and see what happens. Or start the ball rolling... ;-) Byeee Jason G7ODQ jason.singleton@atn.png.po.gpt.co.uk From massong@nbnet.nb.ca Wed Dec 10 19:46:21 1997 Received: from quartz.nbnet.nb.ca (quartz.nbnet.nb.ca [198.164.200.18]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id TAA11103 for ; Wed, 10 Dec 1997 19:46:20 -0600 (CST) Received: from massong.nbnet.nb.ca ([207.179.170.20]) by quartz.nbnet.nb.ca (Post.Office MTA v3.1.2 release (PO203-101c) ID# 607-42492U60000L60000S0) with SMTP id AAA29030 for ; Wed, 10 Dec 1997 21:46:18 -0400 Message-Id: <3.0.32.19971210214549.00697ee8@mailserv.nbnet.nb.ca> X-Sender: massong@mailserv.nbnet.nb.ca X-Mailer: Windows Eudora Pro Version 3.0 Demo (32) Date: Wed, 10 Dec 1997 21:45:50 -0400 To: ss@tapr.org From: massong@nbnet.nb.ca (massong) Subject: DSSS w/BPSK Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Hi, I am working on a thesis project for my BScEE degree. We are planning on building a DSSS system. We plan to use BPSk modulation with a carrier frequency of 915 Mhz. We ordered a modulator today from www.minicircuits.com, my question is, what do I need on my recieve to demodulate the BPSK signal? I believe all I really need is a local oscillator at 915 MHz which I will mix with my incoming signal, this should give me the original signal that I place into the BPSK modualor (which will be a representation of a digital signal). I imagine I will need some filters after the mixer to get rid of as much noise as possible... Anyhow, I hope someone kind enough out their can give me a basic little tutorial on some of the issues I might face when trying to demodulate the signal.. I know their are issues with linning up my PN code, and using a matched filter to lock onto the code etc,. I guess my main concern right now are the issues with trying to lock into the carrier frequency and demodulate the data. Thanks for your input. Gary From Berni_Joss@LOGITECH.COM Thu Dec 11 01:48:04 1997 Received: from mail.pilot.net (ns.pilot.net [198.232.147.10]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id BAA12768 for ; Thu, 11 Dec 1997 01:48:02 -0600 (CST) From: Berni_Joss@LOGITECH.COM Received: from LOGITECH.COM (unknown-116-25.logitech.com [198.70.116.25]) by mail.pilot.net with SMTP id XAA29712 for ; Wed, 10 Dec 1997 23:48:00 -0800 (PST) Received: by LOGITECH.COM(Lotus SMTP MTA v1.1 (385.6 5-6-1997)) id 8825656A.002C7061 ; Thu, 11 Dec 1997 00:05:23 -0800 X-Lotus-FromDomain: LOGITECH To: ss@tapr.org Message-ID: <4125656A.002A0BAE.00@LOGITECH.COM> Date: Thu, 11 Dec 1997 08:47:06 +0100 Subject: Re: [SS:1872] RE: SS in UK Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Berni Joss 12/10/97 11:47 PM Lee Wiltshire G0IAY wrote: >> >>My first plan was to experiment with direct sequence, probably using >>the Stanford Telecom chipset (if I can get hold of them at a reasonable >>price!), although there seems to be a fair amount of choice now. Is >>anybody out there (US or UK) able to get hold of these chips at >>reasonable costs? (Is there a possibility for a TAPR group purchase?) > >Does the Stanford Telecom chipset deal with RF as well as the digital stuff? >The suggestion for a group purchase sounds a good idea, wouldn't we >need to be members of TAPR first? You might find the same or compatible chip at Zilog http://www.zilog.com : the part would be Z87200 (direct sequence) or Z87L00 (frequency hopping). Analog devices http://www.analog.com offers a 900MHz RF transceiver designed for the Z87L00. It might work with the Z87200 as well ... Regards, Berni Joss From wd5ivd@tapr.org Thu Dec 11 04:44:14 1997 Received: from [208.134.134.40] ([208.134.134.40]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id EAA18556 for ; Thu, 11 Dec 1997 04:44:11 -0600 (CST) Message-Id: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Date: Thu, 11 Dec 1997 04:44:46 -0600 To: " Spread Spectrum " From: "Greg Jones, WD5IVD" Subject: More Audio on the TAPR Radio Project Texas Packet Radio Society held its Fall Digital Symposium on Dec 6th. I recorded all the audio and both Tom McDermott and Bob Stricklin discussed the radio project. So, listen to some more information about what is the current status and what is happening with the radio. Good talks. http://www.tapr.org/tapr/html/tprs97.html Was also good to see the board with more parts on it Bob! Cheers - Greg ----- Greg Jones, WD5IVD Austin, Texas wd5ivd@tapr.org http://www.tapr.org/~wd5ivd From jausten@tntech.edu Thu Dec 11 09:37:22 1997 Received: from tntech.edu (gemini.tntech.edu [149.149.11.7]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id JAA09854 for ; Thu, 11 Dec 1997 09:37:21 -0600 (CST) Received: from [149.149.39.26] ("port 2018"@cookie-monster.ece.tntech.edu) by tntech.edu (PMDF V5.1-10 #24187) with SMTP id <01IR1K6MYB0E8WYUZB@tntech.edu> for ss@tapr.org; Thu, 11 Dec 1997 09:36:44 CST Date: Thu, 11 Dec 1997 09:36:43 -0600 From: jausten@tntech.edu (Jeffrey Austen) Subject: Re: [SS:1873] DSSS w/BPSK X-Sender: jra1854@gemini.tntech.edu To: ss@tapr.org Message-id: MIME-version: 1.0 Content-type: text/plain; charset="us-ascii" >Hi, I am working on a thesis project for my BScEE degree. ... >Anyhow, I hope someone kind enough out their can give me a basic little >tutorial on some of the issues I might face when trying to demodulate >the signal.. ... Gary: This is a non-trivial project. You need to spend some time in the library and, afterwards, in discussion with your instructor or advisor. Here are a few hints: Synchronization is the key to success. There are two synchronization problems to be solved. One is synchronizing to the spreading code and the other is synchronizing with the carrier frequency and phase. The carrier synchronization problem is the same as that in a normal (non spread spectrum) BPSK system. It would be very useful in the laboratory if the two synchronization problems could be separated. If possible, design the system so that the code synchronization (spreading and despreading) can be tested independently of the carrier synchronization (BPSK modulation and demodulation). A particularly useful book on SS is "Introduction to Spread Spectrum Communications" by Peterson, Ziemer and Borth. It contains a lot of material on the synchronization problem and is probably worth trying to get through interlibrary loan if it's not in your library. Another SS book, "CDMA: Principles of Spread Spectrum Communication" by Viterbi is rather deep in math and probably isn't very useful for your project. Many other books contain a chapter or two on SS; you'll just have to look around and see what you can find. The quote "Why waste an hour in the library when you could instead spend ten hours in the lab" is an understatement! Jeff --- Jeffrey Austen | Tennessee Technological University jausten@tntech.edu | Box 5004 +1 931 372 3485 | Cookeville Tennessee 38505 U.S.A. From kd4dla@amsat.org Thu Dec 11 15:41:50 1997 Received: from dfw-ix14.ix.netcom.com (dfw-ix14.ix.netcom.com [206.214.98.14]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id PAA04960 for ; Thu, 11 Dec 1997 15:41:47 -0600 (CST) Received: (from smap@localhost) by dfw-ix14.ix.netcom.com (8.8.4/8.8.4) id PAA03687 for ; Thu, 11 Dec 1997 15:41:08 -0600 (CST) Received: from det-mi16-24.ix.netcom.com(207.220.154.88) by dfw-ix14.ix.netcom.com via smap (V1.3) id rma003637; Thu Dec 11 15:40:59 1997 Message-ID: <34905B07.6FFD@amsat.org> Date: Thu, 11 Dec 1997 16:28:39 -0500 From: James Clay French KD4DLA Reply-To: kd4dla@amsat.org Organization: SouthEast Michigan AMSAT X-Mailer: Mozilla 3.01Gold (Win95; U) MIME-Version: 1.0 To: ss@tapr.org Subject: Microwave part Web sites Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Hello everyone. I just recently joined the Spread Spectrum SIG and have one question. Does anyone have a comprehensive list of Part suppliers that have active websites? Thanks, James KD4DLA From stoskopf@tri.net Thu Dec 11 17:15:59 1997 Received: from styx.tri.net (root@styx.tri.net [205.153.244.6]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id RAA09173 for ; Thu, 11 Dec 1997 17:15:57 -0600 (CST) Received: from mine (g1.tri.net [205.153.244.134]) by styx.tri.net (8.8.3/8.8.3) with ESMTP id RAA09795 for ; Thu, 11 Dec 1997 17:15:47 -0600 Message-ID: <3490741A.B53ECBF0@tri.net> Date: Thu, 11 Dec 1997 17:15:38 -0600 From: Lawrence Stoskopf Reply-To: stoskopf@tri.net X-Mailer: Mozilla 4.01 [en] (Win95; I) MIME-Version: 1.0 To: ss@tapr.org Subject: Virtual Textbook? X-Priority: 3 (Normal) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Many posts have been made here about SS and excellent answers posted to recurrent questions. This is an off the wall suggestion, but based on the experience of the anesthesia community with the Virtual Anesthesia Textbook, perhaps someone could start an outline for such a text here and experts on each subject add some comments/information. These could be altered by others and a very useful guide to the subject developed. The concept is not a FAQ list, but a real text intended for the ham community. Just lurking, N0UU From zim@c031.aone.net.au Thu Dec 11 20:37:27 1997 Received: from mail.mel.aone.net.au (mail.mel.aone.net.au [203.12.176.157]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id UAA26786 for ; Thu, 11 Dec 1997 20:37:24 -0600 (CST) Received: from c031.aone.net.au (d59-1.cpe.Melbourne.aone.net.au [203.12.184.59]) by mail.mel.aone.net.au (8.8.6/8.8.6) with ESMTP id NAA02789 for ; Fri, 12 Dec 1997 13:37:20 +1100 (EST) Message-ID: <3490A1D3.DF86D259@c031.aone.net.au> Date: Fri, 12 Dec 1997 13:30:43 +1100 From: Graeme Zimmer X-Mailer: Mozilla 4.03 [en] (Win95; I) MIME-Version: 1.0 To: ss@tapr.org Subject: Re: [SS:1876] SS digest 449 References: <199712112103.PAA03048@tapr.org> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Gary wrote... > Hi, I am working on a thesis project for my BScEE degree. We are planning > on building a DSSS system. Hello Gary, I have just finished a similar project, so maybe I can help... > We plan to use BPSk modulation with a carrier frequency of > 915 Mhz. We ordered a modulator today from www.minicircuits.com, my question > is, what > do I need on my recieve to demodulate the BPSK signal? There are various approaches. The simplest is probably to mix the 915 Mhz downto about 100 Mhz and feed it through three parallel "demodulators" each of which feeds a separate IF strip. The IF strips will need to be quite narrow and so will probably use double conversion to 455 Khz and decent ceramic resonators. The three demods are driven from three different "phases" (early/on-time/late) from your PN generator. The output from the early and late IFs develops a steering voltage to lock the PN generator in phase........... Anyway, a useful reference is "Voice link over spead spectrum radio" by James Vincent in Electronics and Wireless World, Sept/Oct '93. A "must have" book is "Spread Spectrum Systems with Commercial Applications" (Third Edition is just out) by Robert C Dixon. Of course these days SS is usually done via direct conversion to base-band I & Q and then using DSP to sort it all out..... If I can help further write to me at zim@c031.aone.net.au ... Cheers .................. Graeme Zimmer ............. VK3GJZ From lawrence@javanet.com Thu Dec 11 21:32:46 1997 Received: from pos-srv4100.javanet.com (pos-srv4100.javanet.com [205.219.162.21]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id VAA29755 for ; Thu, 11 Dec 1997 21:32:44 -0600 (CST) Received: from as4100a.javanet.com (as4100a.javanet.com [205.219.162.8]) by pos-srv4100.javanet.com (8.8.8/8.7) with ESMTP id WAA01042 for ; Thu, 11 Dec 1997 22:32:43 -0500 (EST) Received: from ljgruber (bos-us619.javanet.com [209.94.141.34]) by as4100a.javanet.com (8.8.6/8.7) with SMTP id WAA16599 for ; Thu, 11 Dec 1997 22:32:41 -0500 (EST) Message-Id: <3.0.3.32.19971211223034.006df6c4@javanet.com> X-Sender: lawrence@javanet.com X-Mailer: QUALCOMM Windows Eudora Light Version 3.0.3 (32) Date: Thu, 11 Dec 1997 22:30:34 -0500 To: ss@tapr.org From: Lawrence Gruber Subject: Re: [SS:1874] RE: SS in UK -- AMI Products In-Reply-To: <4125656A.002A0BAE.00@LOGITECH.COM> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" At 01:51 AM 12/11/97 -0600, you wrote: > > > >Berni Joss >12/10/97 11:47 PM > > >Lee Wiltshire G0IAY wrote: >>> >>>My first plan was to experiment with direct sequence, probably using >>>the Stanford Telecom chipset (if I can get hold of them at a reasonable >>>price!), although there seems to be a fair amount of choice now. Is >>>anybody out there (US or UK) able to get hold of these chips at >>>reasonable costs? (Is there a possibility for a TAPR group purchase?) >> >>Does the Stanford Telecom chipset deal with RF as well as the digital >stuff? >>The suggestion for a group purchase sounds a good idea, wouldn't we >>need to be members of TAPR first? >You might find the same or compatible chip at Zilog http://www.zilog.com : >the part would be Z87200 (direct sequence) or Z87L00 (frequency hopping). >Analog devices http://www.analog.com offers a 900MHz RF transceiver >designed for the Z87L00. It might work with the Z87200 as well ... > > >Regards, >Berni Joss > I'm glad to see all this interest in SS chip sets in the U.K. I gave up my interest a few months ago (I don't have the technical expertise, resources, or time). But, I just wanted to mention that, in addition to Harris and Zilog, AMI (American Microsystems, Inc.) makes an SX071, SX072, and SX073 70 Mhz.(quadrature) modulator/osc. in addition to their SX043 SS Transceiver and newer SX047, SX048, SX049 High data rate units (4 to 16 Mbps). Maybe you already know about these chips. http://www.amis.com/ I've decided to settle in for the exciting TAPR FHSS project, when it is completed! Larry (Lawrence) Gruber Medford, Massachusetts USA lawrence@javanet.com From lawrence@javanet.com Thu Dec 11 21:52:21 1997 Received: from pos-srv4100.javanet.com (pos-srv4100.javanet.com [205.219.162.21]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id VAA01196 for ; Thu, 11 Dec 1997 21:52:19 -0600 (CST) Received: from as4100a.javanet.com (as4100a.javanet.com [205.219.162.8]) by pos-srv4100.javanet.com (8.8.8/8.7) with ESMTP id WAA15977 for ; Thu, 11 Dec 1997 22:52:18 -0500 (EST) Received: from ljgruber (bos-us619.javanet.com [209.94.141.34]) by as4100a.javanet.com (8.8.6/8.7) with SMTP id WAA16951 for ; Thu, 11 Dec 1997 22:51:22 -0500 (EST) Message-Id: <3.0.3.32.19971211225023.006e1144@javanet.com> X-Sender: lawrence@javanet.com X-Mailer: QUALCOMM Windows Eudora Light Version 3.0.3 (32) Date: Thu, 11 Dec 1997 22:50:23 -0500 To: ss@tapr.org From: Lawrence Gruber Subject: Re: [SS:1877] Microwave part Web sites In-Reply-To: <34905B07.6FFD@amsat.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" At 03:43 PM 12/11/97 -0600, you wrote: >Hello everyone. > > I just recently joined the Spread Spectrum SIG and have one question. > > Does anyone have a comprehensive list of Part suppliers that have >active websites? > >Thanks, >James KD4DLA > Very quickly, here are a few: link listings: http://www.wm7d.net/hamradio/amateur5.html#STORES http://www.meci.com/ http://www.downeastmicrowave.com hope this helps. Larry (Lawrence) Gruber Medford, Massachusetts USA lawrence@javanet.com From vk2tds@ozemail.com.au Fri Dec 12 02:57:54 1997 Received: from oznet11.ozemail.com.au (oznet11.ozemail.com.au [203.2.192.118]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id CAA00651 for ; Fri, 12 Dec 1997 02:57:51 -0600 (CST) Received: from ozemail.com.au (slsyd20p31.ozemail.com.au [203.108.24.47]) by oznet11.ozemail.com.au (8.8.4/8.6.12) with ESMTP id TAA05127 for ; Fri, 12 Dec 1997 19:57:37 +1100 (EST) Message-ID: <3490FBCB.3BBA3F0@ozemail.com.au> Date: Fri, 12 Dec 1997 19:54:36 +1100 From: Darryl Smith X-Mailer: Mozilla 4.03 [en] (Win95; I) MIME-Version: 1.0 To: ss@tapr.org Subject: Re: DSSS w/BPSK References: <199712112103.PAA03048@tapr.org> Content-Type: multipart/signed; protocol="application/x-pkcs7-signature"; micalg=sha1; boundary="------------msE8683E80042EE90C82FAF438" This is a cryptographically signed message in MIME format. --------------msE8683E80042EE90C82FAF438 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit OK - The Ziemler and Peterson book is out of print I believe. If it is I will give anyone who needs a copy the TIFF images on CD or over the net ( I scanned my xerox of the book at work). It is a good book - I showed this book to my thesis supervisor a couple of years back, and he said he had had lunch with one of the authors the week before (during a one week break in lectures) in teh USA (He was telling me this in sydney) and the guy used to live next to one of the other authors.... Viterbis book is also good...... Why is it that all the authors have a strong affiliation with the Uni Of California? Also watch out for errors in both books.... Darryl vk2tds@ozemail.com.ai --------------msE8683E80042EE90C82FAF438 Content-Type: application/x-pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIIQngYJKoZIhvcNAQcCoIIQjzCCEIsCAQExCzAJBgUrDgMCGgUAMAsGCSqGSIb3DQEHAaCC DwwwggpWMIIJv6ADAgECAhBNufKq2fQxOKEMhZogsXYtMA0GCSqGSIb3DQEBBAUAMGIxETAP BgNVBAcTCEludGVybmV0MRcwFQYDVQQKEw5WZXJpU2lnbiwgSW5jLjE0MDIGA1UECxMrVmVy aVNpZ24gQ2xhc3MgMSBDQSAtIEluZGl2aWR1YWwgU3Vic2NyaWJlcjAeFw05NzA4MDIwMDAw MDBaFw05ODA4MDIyMzU5NTlaMIIBHjERMA8GA1UEBxMISW50ZXJuZXQxFzAVBgNVBAoTDlZl cmlTaWduLCBJbmMuMTQwMgYDVQQLEytWZXJpU2lnbiBDbGFzcyAxIENBIC0gSW5kaXZpZHVh bCBTdWJzY3JpYmVyMUYwRAYDVQQLEz13d3cudmVyaXNpZ24uY29tL3JlcG9zaXRvcnkvQ1BT IEluY29ycC4gYnkgUmVmLixMSUFCLkxURChjKTk2MTMwMQYDVQQLEypEaWdpdGFsIElEIENs YXNzIDEgLSBOZXRzY2FwZSBGdWxsIFNlcnZpY2UxFzAVBgNVBAMTDkRhcnJ5bCBSIFNtaXRo MSQwIgYJKoZIhvcNAQkBFhV2azJ0ZHNAb3plbWFpbC5jb20uYXUwXDANBgkqhkiG9w0BAQEF AANLADBIAkEA5epUXt4wi7NNoSMZh+g9NiY0qzeKimvVAaeVVzkYN6q0nx0NzRVJKaTQ8BQ1 vs7GUCteoAX9QBiDqH4FYDfVXQIDAQABo4IHkTCCB40wCQYDVR0TBAIwADCCAh8GA1UdAwSC AhYwggISMIICDjCCAgoGC2CGSAGG+EUBBwEBMIIB+RaCAadUaGlzIGNlcnRpZmljYXRlIGlu Y29ycG9yYXRlcyBieSByZWZlcmVuY2UsIGFuZCBpdHMgdXNlIGlzIHN0cmljdGx5IHN1Ympl Y3QgdG8sIHRoZSBWZXJpU2lnbiBDZXJ0aWZpY2F0aW9uIFByYWN0aWNlIFN0YXRlbWVudCAo Q1BTKSwgYXZhaWxhYmxlIGF0OiBodHRwczovL3d3dy52ZXJpc2lnbi5jb20vQ1BTOyBieSBF LW1haWwgYXQgQ1BTLXJlcXVlc3RzQHZlcmlzaWduLmNvbTsgb3IgYnkgbWFpbCBhdCBWZXJp U2lnbiwgSW5jLiwgMjU5MyBDb2FzdCBBdmUuLCBNb3VudGFpbiBWaWV3LCBDQSA5NDA0MyBV U0EgVGVsLiArMSAoNDE1KSA5NjEtODgzMCBDb3B5cmlnaHQgKGMpIDE5OTYgVmVyaVNpZ24s IEluYy4gIEFsbCBSaWdodHMgUmVzZXJ2ZWQuIENFUlRBSU4gV0FSUkFOVElFUyBESVNDTEFJ TUVEIGFuZCBMSUFCSUxJVFkgTElNSVRFRC6gDgYMYIZIAYb4RQEHAQEBoQ4GDGCGSAGG+EUB BwEBAjAsMCoWKGh0dHBzOi8vd3d3LnZlcmlzaWduLmNvbS9yZXBvc2l0b3J5L0NQUyAwEQYJ YIZIAYb4QgEBBAQDAgeAMDYGCWCGSAGG+EIBCAQpFidodHRwczovL3d3dy52ZXJpc2lnbi5j b20vcmVwb3NpdG9yeS9DUFMwggSHBglghkgBhvhCAQ0EggR4FoIEdENBVVRJT046IFRoZSBD b21tb24gTmFtZSBpbiB0aGlzIENsYXNzIDEgRGlnaXRhbCAKSUQgaXMgbm90IGF1dGhlbnRp Y2F0ZWQgYnkgVmVyaVNpZ24uIEl0IG1heSBiZSB0aGUKaG9sZGVyJ3MgcmVhbCBuYW1lIG9y IGFuIGFsaWFzLiBWZXJpU2lnbiBkb2VzIGF1dGgtCmVudGljYXRlIHRoZSBlLW1haWwgYWRk cmVzcyBvZiB0aGUgaG9sZGVyLgoKVGhpcyBjZXJ0aWZpY2F0ZSBpbmNvcnBvcmF0ZXMgYnkg cmVmZXJlbmNlLCBhbmQgCml0cyB1c2UgaXMgc3RyaWN0bHkgc3ViamVjdCB0bywgdGhlIFZl cmlTaWduIApDZXJ0aWZpY2F0aW9uIFByYWN0aWNlIFN0YXRlbWVudCAoQ1BTKSwgYXZhaWxh YmxlCmluIHRoZSBWZXJpU2lnbiByZXBvc2l0b3J5IGF0OiAKaHR0cHM6Ly93d3cudmVyaXNp Z24uY29tOyBieSBFLW1haWwgYXQKQ1BTLXJlcXVlc3RzQHZlcmlzaWduLmNvbTsgb3IgYnkg bWFpbCBhdCBWZXJpU2lnbiwKSW5jLiwgMjU5MyBDb2FzdCBBdmUuLCBNb3VudGFpbiBWaWV3 LCBDQSA5NDA0MyBVU0EKCkNvcHlyaWdodCAoYykxOTk2IFZlcmlTaWduLCBJbmMuICBBbGwg UmlnaHRzIApSZXNlcnZlZC4gQ0VSVEFJTiBXQVJSQU5USUVTIERJU0NMQUlNRUQgQU5EIApM SUFCSUxJVFkgTElNSVRFRC4KCldBUk5JTkc6IFRIRSBVU0UgT0YgVEhJUyBDRVJUSUZJQ0FU RSBJUyBTVFJJQ1RMWQpTVUJKRUNUIFRPIFRIRSBWRVJJU0lHTiBDRVJUSUZJQ0FUSU9OIFBS QUNUSUNFClNUQVRFTUVOVC4gIFRIRSBJU1NVSU5HIEFVVEhPUklUWSBESVNDTEFJTVMgQ0VS VEFJTgpJTVBMSUVEIEFORCBFWFBSRVNTIFdBUlJBTlRJRVMsIElOQ0xVRElORyBXQVJSQU5U SUVTCk9GIE1FUkNIQU5UQUJJTElUWSBPUiBGSVRORVNTIEZPUiBBIFBBUlRJQ1VMQVIKUFVS UE9TRSwgQU5EIFdJTEwgTk9UIEJFIExJQUJMRSBGT1IgQ09OU0VRVUVOVElBTCwKUFVOSVRJ VkUsIEFORCBDRVJUQUlOIE9USEVSIERBTUFHRVMuIFNFRSBUSEUgQ1BTCkZPUiBERVRBSUxT LgoKQ29udGVudHMgb2YgdGhlIFZlcmlTaWduIHJlZ2lzdGVyZWQKbm9udmVyaWZpZWRTdWJq ZWN0QXR0cmlidXRlcyBleHRlbnNpb24gdmFsdWUgc2hhbGwgCm5vdCBiZSBjb25zaWRlcmVk IGFzIGFjY3VyYXRlIGluZm9ybWF0aW9uIHZhbGlkYXRlZCAKYnkgdGhlIElBLjCBhgYKYIZI AYb4RQEGAwR4FnZkNDY1MmJkNjNmMjA0NzAyOTI5ODc2M2M5ZDJmMjc1MDY5YzczNTliZWQx YjA1OWRhNzViYzRiYzk3MDE3NDdkYTVjN2Y0MTQxYmVhZGIyYmQyZTg5MjA2YWY2ZWY3ZDIx MTQ5OWJhMmJkNDNmNGU0OTY2NTQxMA0GCSqGSIb3DQEBBAUAA4GBACaQJ/F/Ua1uvUoqnGNn +RETaY3OsPW/BYrVi/xwM5N95x1HwN/Vhmz5FsXMXuTHnL61RSoV6VlshTv7+Xkw+hyOC1ne fhbVJj1g93oRPJE2+iJpU6U5MFAB7lzH/fszM4ePZe3VnNl3N2xk0PfHBx76sX+kT32ttOtw om3XDLSBMIICeTCCAeKgAwIBAgIQUh81HfJwfgArvspZhwTVOTANBgkqhkiG9w0BAQIFADBf MQswCQYDVQQGEwJVUzEXMBUGA1UEChMOVmVyaVNpZ24sIEluYy4xNzA1BgNVBAsTLkNsYXNz IDEgUHVibGljIFByaW1hcnkgQ2VydGlmaWNhdGlvbiBBdXRob3JpdHkwHhcNOTYwNjI3MDAw MDAwWhcNOTkwNjI3MjM1OTU5WjBiMREwDwYDVQQHEwhJbnRlcm5ldDEXMBUGA1UEChMOVmVy aVNpZ24sIEluYy4xNDAyBgNVBAsTK1ZlcmlTaWduIENsYXNzIDEgQ0EgLSBJbmRpdmlkdWFs IFN1YnNjcmliZXIwgZ8wDQYJKoZIhvcNAQEBBQADgY0AMIGJAoGBALYUps9N0AUN2Moj0G+q tCmSY44s+G+W1y6ddksRsTaNV8nD/RzGuv4eCLozypXqvuNbzQaot3kdRCrtc/KxUoNoEHBk kdc+a/n3XZ0UQ5tul0WYgUfRLcvdu3LXTD9xquJA8lQ5vBbuz3zsuts/bCqzFrGGEp2ukzTV uNXQ9z6pAgMBAAGjMzAxMA8GA1UdEwQIMAYBAf8CAQEwCwYDVR0PBAQDAgEGMBEGCWCGSAGG +EIBAQQEAwIBBjANBgkqhkiG9w0BAQIFAAOBgQDB+vcC51fKEXXGnAz6K3dPh0UXO+PSwdoP WDmOrpWZA6GooTj+eZqTFwuXhjnHymg0ZrvHiEX2yAwF7r6XJe/g1G7kf512XM59uhSirguf +2dbSKVnJa8ZZIj2ctgpJ6o3EmqxKK8ngxhlbI3tQJ5NxHiohuzpLFC/pvkN27CmSjCCAjEw ggGaAgUCpAAAATANBgkqhkiG9w0BAQIFADBfMQswCQYDVQQGEwJVUzEXMBUGA1UEChMOVmVy aVNpZ24sIEluYy4xNzA1BgNVBAsTLkNsYXNzIDEgUHVibGljIFByaW1hcnkgQ2VydGlmaWNh dGlvbiBBdXRob3JpdHkwHhcNOTYwMTI5MDAwMDAwWhcNOTkxMjMxMjM1OTU5WjBfMQswCQYD VQQGEwJVUzEXMBUGA1UEChMOVmVyaVNpZ24sIEluYy4xNzA1BgNVBAsTLkNsYXNzIDEgUHVi bGljIFByaW1hcnkgQ2VydGlmaWNhdGlvbiBBdXRob3JpdHkwgZ8wDQYJKoZIhvcNAQEBBQAD gY0AMIGJAoGBAOUZv22jVmEtmUhx9mfeuY3rt56GgAqRDvo4Ja9GiILlc6igmyRdDR/MZW4M sNBWhBiHmgabEKFz37RYOWtuwfYV1aioP6oSBo0xrH+wNNePNGeICc0UEeJORVZpH3gCgNrc R5EpuzbJY1zF4Ncth3uhtzKwezC6Ki8xqu6jZ9rbAgMBAAEwDQYJKoZIhvcNAQECBQADgYEA UnO6mlXc3D+CfbCQmGIqgkx2AG4lPdXCCXBXAQwPdx8YofscYA6gdTtJIUH+p1wtTEJJ0/8o 2Izqnf7JB+J3glMj3lXzzkST+vpMvco281tmsp7I8gxeXtShtCEJM8o7WfySwjj8rdmWJOAt +qMp9TNoeE60vJ9pNeKomJRzO8QxggFaMIIBVgIBATB2MGIxETAPBgNVBAcTCEludGVybmV0 MRcwFQYDVQQKEw5WZXJpU2lnbiwgSW5jLjE0MDIGA1UECxMrVmVyaVNpZ24gQ2xhc3MgMSBD QSAtIEluZGl2aWR1YWwgU3Vic2NyaWJlcgIQTbnyqtn0MTihDIWaILF2LTAJBgUrDgMCGgUA oH0wGAYJKoZIhvcNAQkDMQsGCSqGSIb3DQEHATAcBgkqhkiG9w0BCQUxDxcNOTcxMjEyMDg1 NDM2WjAeBgkqhkiG9w0BCQ8xETAPMA0GCCqGSIb3DQMCAgEoMCMGCSqGSIb3DQEJBDEWBBSE kV00xyIeoHBF1erzSVDiESUDDzANBgkqhkiG9w0BAQEFAARAZMch9wLH59/5XAQ0A7Vj951R o82Lg6vTpUxBIQHRpAH9ZHqm1T09lbc/aaqblZxFFHQxmsZPk3U/iEyu/aNA6w== --------------msE8683E80042EE90C82FAF438-- From RLANIER@mailb.harris.com Fri Dec 12 07:20:36 1997 Received: from suc1a.harris.com (suc1a.corp.harris.com [137.237.104.13]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id HAA18160 for ; Fri, 12 Dec 1997 07:20:34 -0600 (CST) Received: from mailb.harris.com (eds-email-1.ess.harris.com [130.41.38.127]) by suc1a.harris.com (8.8.5/8.8.5) with SMTP id IAA27677 for ; Fri, 12 Dec 1997 08:20:28 -0500 (EST) Received: from ccMail by mailb.harris.com (IMA Internet Exchange 1.04b) id 49139600; Fri, 12 Dec 97 08:17:20 -0500 Mime-Version: 1.0 Date: Fri, 12 Dec 1997 08:21:58 -0500 Message-ID: <49139600@mailb.harris.com> Return-receipt-to: RLANIER@mailb.harris.com (RLANIER) From: RLANIER@mailb.harris.com (RLANIER) Subject: Re: [SS:1878] Virtual Textbook? To: ss@tapr.org Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Description: cc:Mail note part We kind of went through this with the DSP list: there was going to be a virtual classroom with everyone using the same textbook and software, but it seems to have fizzled out. I would be up to the task if we do this. Maybe we can use Tom's book as a starting point. Just my two cents, Tony KE4ATO ______________________________ Reply Separator _________________________________ Subject: [SS:1878] Virtual Textbook? Author: ss@tapr.org at smtp Date: 12/11/97 5:20 PM Many posts have been made here about SS and excellent answers posted to recurrent questions. This is an off the wall suggestion, but based on the experience of the anesthesia community with the Virtual Anesthesia Textbook, perhaps someone could start an outline for such a text here and experts on each subject add some comments/information. These could be altered by others and a very useful guide to the subject developed. The concept is not a FAQ list, but a real text intended for the ham community. Just lurking, N0UU From RLANIER@mailb.harris.com Fri Dec 12 07:38:58 1997 Received: from suc1a.harris.com (suc1a.corp.harris.com [137.237.104.13]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id HAA18805 for ; Fri, 12 Dec 1997 07:38:54 -0600 (CST) Received: from mailb.harris.com (eds-email-1.ess.harris.com [130.41.38.127]) by suc1a.harris.com (8.8.5/8.8.5) with SMTP id IAA00616 for ; Fri, 12 Dec 1997 08:38:49 -0500 (EST) Received: from ccMail by mailb.harris.com (IMA Internet Exchange 1.04b) id 4913d310; Fri, 12 Dec 97 08:33:37 -0500 Mime-Version: 1.0 Date: Fri, 12 Dec 1997 08:30:55 -0500 Message-ID: <4913d310@mailb.harris.com> Return-receipt-to: RLANIER@mailb.harris.com (RLANIER) From: RLANIER@mailb.harris.com (RLANIER) Subject: Re: [SS:1879] Re: SS digest 449 To: ss@tapr.org Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Description: cc:Mail note part Hi Gary, If I were doing this project, I would separate it into two halfs: one RF and one digital. Mix down the 915MHz signal to around 455kHz using double conversion as Graeme suggested and then convert the signal to digital using an analog-to-digital converter. Then process the signal using a DSP if possible (have you had a DSP class yet?). If not, then other means would need to be used. The DSP is a good approach because it is programmable. The two references Graeme suggests are also very good. The book by Dixon can probably be found in your library. Have fun and let us know how it turns out. Tony KE4ATO ______________________________ Reply Separator _________________________________ Subject: [SS:1879] Re: SS digest 449 Author: ss@tapr.org at smtp Date: 12/11/97 8:45 PM Gary wrote... > Hi, I am working on a thesis project for my BScEE degree. We are planning > on building a DSSS system. Hello Gary, I have just finished a similar project, so maybe I can help... > We plan to use BPSk modulation with a carrier frequency of > 915 Mhz. We ordered a modulator today from www.minicircuits.com, my question > is, what > do I need on my recieve to demodulate the BPSK signal? There are various approaches. The simplest is probably to mix the 915 Mhz downto about 100 Mhz and feed it through three parallel "demodulators" each of which feeds a separate IF strip. The IF strips will need to be quite narrow and so will probably use double conversion to 455 Khz and decent ceramic resonators. The three demods are driven from three different "phases" (early/on-time/late) from your PN generator. The output from the early and late IFs develops a steering voltage to lock the PN generator in phase........... Anyway, a useful reference is "Voice link over spead spectrum radio" by James Vincent in Electronics and Wireless World, Sept/Oct '93. A "must have" book is "Spread Spectrum Systems with Commercial Applications" (Third Edition is just out) by Robert C Dixon. Of course these days SS is usually done via direct conversion to base-band I & Q and then using DSP to sort it all out..... If I can help further write to me at zim@c031.aone.net.au ... Cheers .................. Graeme Zimmer ............. VK3GJZ From jausten@tntech.edu Fri Dec 12 08:34:13 1997 Received: from tntech.edu (gemini.tntech.edu [149.149.11.7]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id IAA21425 for ; Fri, 12 Dec 1997 08:34:11 -0600 (CST) Received: from [149.149.39.26] ("port 1826"@cookie-monster.ece.tntech.edu) by tntech.edu (PMDF V5.1-10 #24187) with SMTP id <01IR2W8JGIAC8WYVL1@tntech.edu> for ss@tapr.org; Fri, 12 Dec 1997 08:32:39 CST Date: Fri, 12 Dec 1997 08:32:38 -0600 From: jausten@tntech.edu (Jeffrey Austen) Subject: Re: DSSS w/BPSK X-Sender: jra1854@gemini.tntech.edu To: ss@tapr.org Message-id: MIME-version: 1.0 Content-type: text/plain; charset="us-ascii" >OK - The Ziemler and Peterson book is out of print I believe. If it is I will >give anyone who needs a copy the TIFF images on CD or over the net ( I scanned >my xerox of the book at work). There are three similar books. Two are by Ziemer and Peterson (and not Borth) titled "Digital Communication and Spread Spectrum Systems" and these both are probably out of print. The third book, "Introduction to Spread Spectrum Communications" by Peterson, Ziemer and Borth, was published in 1995 (Prentice-Hall, ISBN 0-02-431623-7). It includes much more material on SS than the previous books. A quick search of an online bookstore shows that it is presently available. Jeff, k9ja --- Jeffrey Austen | Tennessee Technological University jausten@tntech.edu | Box 5004 +1 931 372 3485 | Cookeville Tennessee 38505 U.S.A. From RLANIER@mailb.harris.com Fri Dec 12 10:07:39 1997 Received: from suc1a.harris.com (suc1a.corp.harris.com [137.237.104.13]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id KAA25856 for ; Fri, 12 Dec 1997 10:07:38 -0600 (CST) Received: from mailb.harris.com (eds-email-1.ess.harris.com [130.41.38.127]) by suc1a.harris.com (8.8.5/8.8.5) with SMTP id LAA26823 for ; Fri, 12 Dec 1997 11:07:33 -0500 (EST) Received: from ccMail by mailb.harris.com (IMA Internet Exchange 1.04b) id 49160790; Fri, 12 Dec 97 11:04:09 -0500 Mime-Version: 1.0 Date: Fri, 12 Dec 1997 11:03:48 -0500 Message-ID: <49160790@mailb.harris.com> Return-receipt-to: RLANIER@mailb.harris.com (RLANIER) From: RLANIER@mailb.harris.com (RLANIER) Subject: Re: [SS:1885] Re: DSSS w/BPSK To: ss@tapr.org Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Description: cc:Mail note part Whoever wrote this, I would be interested in getting a copy. Please let me know. Tony KE4ATO ______________________________ Reply Separator _________________________________ Subject: [SS:1885] Re: DSSS w/BPSK Author: ss@tapr.org at smtp Date: 12/12/97 8:39 AM >OK - The Ziemler and Peterson book is out of print I believe. If it is I will >give anyone who needs a copy the TIFF images on CD or over the net ( I scanned >my xerox of the book at work). From marin.vidakovic@os.tel.hr Fri Dec 12 14:33:22 1997 Received: from alf.tel.hr (root@alf.tel.hr [205.219.255.5]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id OAA16792 for ; Fri, 12 Dec 1997 14:33:20 -0600 (CST) Received: from ac27-p11-zg.tel.hr (ac27-p11-zg.tel.hr [195.29.226.218]) by alf.tel.hr (8.8.6/8.8.6) with SMTP id VAA17149 for ; Fri, 12 Dec 1997 21:33:16 +0100 (MET) Received: by ac27-p11-zg.tel.hr with Microsoft Mail id <01BC8E42.1C30D7C0@ac27-p11-zg.tel.hr>; Fri, 11 Jul 1997 21:33:45 -0000 Message-ID: <01BC8E42.1C30D7C0@ac27-p11-zg.tel.hr> From: Marin Vidakovic To: "'ss@tapr.org'" Subject: RE: 1886] Re: DSSS w/BPSK Date: Fri, 11 Jul 1997 21:33:32 -0000 MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="---- =_NextPart_000_01BC8E42.1C30D7C0" ------ =_NextPart_000_01BC8E42.1C30D7C0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit How big is this stuff? -----Original Message----- From: RLANIER [SMTP:RLANIER@mailb.harris.com] Sent: 1997. prosinac 12 16:11 To: ss@tapr.org Subject: [SS:1886] Re: DSSS w/BPSK Whoever wrote this, I would be interested in getting a copy. Please let me know. Tony KE4ATO ______________________________ Reply Separator _________________________________ Subject: [SS:1885] Re: DSSS w/BPSK Author: ss@tapr.org at smtp Date: 12/12/97 8:39 AM >OK - The Ziemler and Peterson book is out of print I believe. If it is I will >give anyone who needs a copy the TIFF images on CD or over the net ( I scanned >my xerox of the book at work). ------ =_NextPart_000_01BC8E42.1C30D7C0 Content-Type: application/ms-tnef Content-Transfer-Encoding: base64 eJ8+Ii0VAQaQCAAEAAAAAAABAAEAAQeQBgAIAAAA4gQAAAAAAADmAAEIgAcAGAAAAElQTS5NaWNy b3NvZnQgTWFpbC5Ob3RlADEIAQ2ABAACAAAAAgACAAEEkAYAYAEAAAEAAAAQAAAAAwAAMAIAAAAL AA8OAAAAAAIB/w8BAAAANQAAAAAAAACBKx+kvqMQGZ1uAN0BD1QCAAAAAHNzQHRhcHIub3JnAFNN VFAAc3NAdGFwci5vcmcAAAAAHgACMAEAAAAFAAAAU01UUAAAAAAeAAMwAQAAAAwAAABzc0B0YXBy Lm9yZwADABUMAQAAAAMA/g8GAAAAHgABMAEAAAAOAAAAJ3NzQHRhcHIub3JnJwAAAAIBCzABAAAA EQAAAFNNVFA6U1NAVEFQUi5PUkcAAAAAAwAAOQAAAAALAEA6AQAAAB4A9l8BAAAADAAAAHNzQHRh cHIub3JnAAIB918BAAAANQAAAAAAAACBKx+kvqMQGZ1uAN0BD1QCAAAAAHNzQHRhcHIub3JnAFNN VFAAc3NAdGFwci5vcmcAAAAAAwD9XwEAAAADAP9fAAAAAAIB9g8BAAAABAAAAAAAAAKRPQEEgAEA GgAAAFJFOiAxODg2XSBSZTogRFNTUyB3L0JQU0sAiQYBBYADAA4AAADNBwcACwAVACEAIAAFAEEB ASCAAwAOAAAAzQcHAAsAFQAfACoABQBJAQEJgAEAIQAAADc4NzU0RTNCNDA4RUJDMTE5ODMxM0Uz MkUxNTg4QzlBABsHAQOQBgB8CgAAIQAAAAsAAgABAAAACwAjAAAAAAADACYAAAAAAAsAKQAAAAAA AwAuAAAAAAADADYAAAAAAEAAOQCA7WwUQo68AR4AcAABAAAAGgAAAFJFOiAxODg2XSBSZTogRFNT UyB3L0JQU0sAAAACAXEAAQAAABYAAAABvI5CFFt49a0D+jMR0IdKAAAAAAAAAAAeAB4MAQAAAAUA AABTTVRQAAAAAB4AHwwBAAAAGgAAAG1hcmluLnZpZGFrb3ZpY0Bvcy50ZWwuaHIAAAADAAYQeh1z vQMABxDAAQAAHgAIEAEAAABlAAAASE9XQklHSVNUSElTU1RVRkY/LS0tLS1PUklHSU5BTE1FU1NB R0UtLS0tLUZST006UkxBTklFUlNNVFA6UkxBTklFUkBNQUlMQkhBUlJJU0NPTVNFTlQ6MTk5N1BS T1NJTkFDMQAAAAACAQkQAQAAAFUHAABRBwAAsBIAAExaRnUW4YSwAwAKAHJjcGcxMjVxAUB1YzED MAEHC2BukQ4QMDMzDxZmZQ+STwH3AqQDYwIAY2gKwHOEZXQC0XBycTIAAJIqCqFubxJQIDAB0NUB 0DYPoDAOQDQUIQHQ+RQQNH0HbQKDAFAD1BH//RMLYhPhFFATshj0FNAHE0UV5DYRjjIzOBdUINEH bSBDRRXkNxp/FEDTG68ctXlyFeQ5EY4aUNcWMR7/A4JHCdFrAoMMAe0g/zIiHxy0VAhwI9QWMV0h DTgaYSWfA4JCB0B0/w3gI9QlYRZsG3gHEx0GG3D/Kv8etyyVIFUOMBZOIegslP8jiRphME4lZiyU JucdkTBNXyiXLJQqJgKRCOY7CW8w9Ti/ZQ4wNTnqOwE6vzvJ/znUO/I6Xz4vPe09bzufOe/5EGAy OEO6RNFEj0WZOdR/RcJEL0f/R71HP0VvSTQ5PyVgTIRN4UYDTeACgnN01HlsB5BoCeB0AAATUKED 8GRjdGwKsVxQODBhZGp1T1AFEGdoXwVCFjIMAQ9SFBA4AFBjhwnAUEADMHNuZXgXMC8HsAWwAMAC c3MAUHNiljIUUE9AYRPwXGsJ4H5wC5BQH1CDCGBQcAuAZf1PgHZX0AFAUXsMMFJEG5BvUsdVsASg C4BnRdFTVmL6YRcQZAIgVBBTtk+wUXD5WpEgMU8TJWBVD1YfVy//AFFYbACgUk9a/1wOTwQPwP9d j16fX68lYFhfYg9jH1ws9jMCghMQY1TQa8FRcFywkypQWAAgRAEQYXUqQBQgUArAYQnAYXBonCBG AiFUlDARaS0PkLo4aiFpcFNmn1CDYgsgnnIJUHJyFqBycnc0QyH9FwBwAdBtklGfai9rP2/wt26w BRACMC1vUANhOikQQm94YFN1YmoFkHTBeGBEYXRlOlSUGmH/cD9xT3Jfc290d0+gXKMOIt9ZCCVg dY92n3emUlfxFwH8IEhckQSQVJQdkXo/e09/fF99a1d/fm8PkIqwCNBi+QqwdDhpjg+QZaCA/4IG 54tAgxALUHkvb2B9YAsR/YOFc1SUG5GEj4Wfhq99b/90f4B/jS+OPXiCeCR5WSDQ95EPUS+K5DmU 35XvgfeccPBEb2N1B4ACMAXQbyC/N+GaopoAmkCSkQGAbnjgfwBgCfBtwJ9gAgFUUH8CZZcA8J9g T2BwPGBcdgiQ9HdrC4BkHsCjAgTwB0B/EGEBQA4AkmJcgqRlAhBv7wVCFyES8nlwbQtReXAdADA6 XFxNDeADYHNvuQGAIE8BIA3golBcp9bWRQDAAxAua5B0oDAXEHeaQFORiLJ4AUBcggSQeTw3MCDR pZGqpQjhc3h7qtKhYW5PsDjQqXRuVGPPAyAS8wCABZBsdmChZmD/DnBUUK3yAZAAIK6Co1Gfof8B wa3xFuAPcAAAZmAM0AGQ/CAuN/Kt6CVgrqIqQJqQ/68fsC+xPw/AZmAFgbLfs+/ttP9sHsBmYGyy n7dfuGU+KbFsMBC2P7sfuFRiIP4oApG8P64zGmC5776vv7//wM+uYB2QwhKu78N/xI+xbP8bkMIf x5/Ir8m/rmAg0Maf/8wvzT/ORAr5AzCZ/5sPnJ9JU0V7SNPwIGLVsCCxBAAgdGjYEU9QdQEgvj8K hdME08/U3wVAe9j9/4iw0QLZ79r/AAAPV1NTVBAhEvJia21r0BMgX0ef4AMQeVFhfS3iIk831aEL gCzBTQeQZeBnZf/iI9j702aEPZBg3U+R/5MP/4h/iY+Kn4uv1zTfn3gjDIIBB/BMQU5JRVIgQFtT TVRQOu+lQJmo4mIuFuEFEHMuBaD8bV3jz+TUj/vmD+cf6C//k//WL+2VDDDfrgZgAjDvRIcCkd+u IMA5Ny4gF3A7E2DisWNc8CkAGlA6Mf4x2Pb5/+BxeIH7j+A1BBDWQAyQF3AuBbBn/n/6iq941QBv 4DXwIFP+QDgokA5dgwF5MQZgUyB3L/BCUFNL8h/Tot0P3h+/+B/WvNwfCV8Kb9vDIBDC+Fdob4Mi B3AhAKbB2EJYLCBJB3DpYGxTkGK/GEB30ayhT1A44BLxIONQnnQqUFzRuLCrwHB5/UD2UE+Aa2Eg DUUQw0+ApbDpn5Agaw6RLhVaFVqYgARueRDAS0U0QVT2Tw1FGRxfGm8bOo40+yH/DXF5YAJgGl8e Tw1FeMcGVbY1Bt8NRUHpcBEgcnhghwHaFFClsHNtdHANRTd5UxDCRkAvJSH9ICA4ZDoznHBBTRkf DXI+KE9LIHgAVKTQIFq9oxBtT4ANkIwgU5BQpfDvg0FroNfApZBr2ALpYSnQ/mb9UXfREkES0OmQ 6eH9QL5JKjBt4NgCElGpAGwnBrfioG4RjCB5a6Cm0HcRIH4gU9A44NhwFGTYMabQVPhJRkbYAKjg 41ApwdOw7ENEKdANkG8RUi6iU9CtpbAoEkGj4W5T0GQnBsptGIB4WmBveCoSLqLHKWMjsRJwcmsp FsY0H58CxOCmoWHheQ1GfQA38AAAAAMAEBAAAAAAAwAREAEAAAADAIAQ/////0AABzDAm/zSQY68 AUAACDDAm/zSQY68AQMAAIAIIAYAAAAAAMAAAAAAAABGAAAAABCFAAAAAAAACwAGgAggBgAAAAAA wAAAAAAAAEYAAAAAA4UAAAAAAAADABuACCAGAAAAAADAAAAAAAAARgAAAABShQAAtw0AAB4AHIAI IAYAAAAAAMAAAAAAAABGAAAAAFSFAAABAAAABAAAADguMAADAB2ACCAGAAAAAADAAAAAAAAARgAA AAABhQAAAAAAAAsAJoAIIAYAAAAAAMAAAAAAAABGAAAAAA6FAAAAAAAAAwAngAggBgAAAAAAwAAA AAAAAEYAAAAAEYUAAAAAAAADACmACCAGAAAAAADAAAAAAAAARgAAAAAYhQAAAAAAAB4AOYAIIAYA AAAAAMAAAAAAAABGAAAAADaFAAABAAAAAQAAAAAAAAAeADqACCAGAAAAAADAAAAAAAAARgAAAAA3 hQAAAQAAAAEAAAAAAAAAHgA7gAggBgAAAAAAwAAAAAAAAEYAAAAAOIUAAAEAAAABAAAAAAAAAB4A PQABAAAABQAAAFJFOiAAAAAAAwANNP03AABiYw== ------ =_NextPart_000_01BC8E42.1C30D7C0-- From zim@c031.aone.net.au Fri Dec 12 21:24:39 1997 Received: from mail.mel.aone.net.au (mail.mel.aone.net.au [203.12.176.157]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id VAA13800 for ; Fri, 12 Dec 1997 21:24:36 -0600 (CST) Received: from c031.aone.net.au (d156-2.cpe.Melbourne.aone.net.au [203.12.185.156]) by mail.mel.aone.net.au (8.8.6/8.8.6) with ESMTP id OAA18937 for ; Sat, 13 Dec 1997 14:24:32 +1100 (EST) Message-ID: <3491FE65.1E31D99B@c031.aone.net.au> Date: Sat, 13 Dec 1997 14:17:58 +1100 From: Graeme Zimmer X-Mailer: Mozilla 4.03 [en] (Win95; I) MIME-Version: 1.0 To: ss@tapr.org Subject: Re: [SS:1887] SS digest 450 References: <199712122107.PAA18448@tapr.org> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit > The third book, "Introduction to Spread Spectrum Communications" > by Peterson, Ziemer and Borth, was published in 1995 > (Prentice-Hall, ISBN 0-02-431623-7). It includes much more material on > SS than the previous books. A quick search of an online bookstore shows > that it is presently available. Yup... I just ordered a copy from www.amazon.com ( US$89.33) Thanks for the recomendation Jeff (I think it was)... Cheers .......... Graeme Zimmer .............. VK3GJZ From bm@lynx.ve3jf.ampr.org Sat Dec 13 13:11:42 1997 Received: from lynx.ve3jf.ampr.org (bm@pc-18446.on.rogers.wave.ca [24.112.93.218]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id NAA22766 for ; Sat, 13 Dec 1997 13:11:40 -0600 (CST) From: bm@lynx.ve3jf.ampr.org Received: (from bm@localhost) by lynx.ve3jf.ampr.org (8.8.5/8.8.5) id TAA04493 for ss@tapr.org; Sat, 13 Dec 1997 19:11:34 GMT Message-Id: <199712131911.TAA04493@lynx.ve3jf.ampr.org> Date: Sat, 13 Dec 1997 19:11:33 +0000 (GMT) To: ss@tapr.org Subject: Re: [SS:1877] Microwave part Web sites In-Reply-To: <34905B07.6FFD@amsat.org> X-Mailer: Ishmail 1.3.1-961106-linux MIME-Version: 1.0 Content-Type: text/plain James Clay French KD4DLA wrote: > > Hello everyone. > > I just recently joined the Spread Spectrum SIG and have one question. > > Does anyone have a comprehensive list of Part suppliers that have > active websites? Check out Lee Fry's listings at http://www.mindspring.com/~lfry/part15.htm I see that they haven't been updated in more than a year, though... you still out there, Lee? Barry -- Barry McLarnon VE3JF/VA3TCP | Internet: bm@hydra.carleton.ca Ottawa Amateur Radio Club | AMPRnet: bm@lynx.ve3jf.ampr.org Packet Working Group | Web: http://hydra.carleton.ca From vk2tds@ozemail.com.au Sat Dec 13 23:39:32 1997 Received: from oznet11.ozemail.com.au (oznet11.ozemail.com.au [203.2.192.118]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id XAA28392 for ; Sat, 13 Dec 1997 23:39:30 -0600 (CST) Received: from ozemail.com.au (slsyd20p15.ozemail.com.au [203.108.24.31]) by oznet11.ozemail.com.au (8.8.4/8.6.12) with ESMTP id QAA17521 for ; Sun, 14 Dec 1997 16:39:26 +1100 (EST) Message-ID: <349266C7.3A871587@ozemail.com.au> Date: Sat, 13 Dec 1997 21:43:20 +1100 From: Darryl Smith X-Mailer: Mozilla 4.03 [en] (Win95; I) MIME-Version: 1.0 To: ss@tapr.org Subject: Re:Ziemler and Peterson References: <199712122107.PAA18448@tapr.org> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit OK - I just checked, I do have Zeimler and Peterson here; Scanned in using Tiff Group 1 one file per page (Imageing for windows which comes free with windows 95/NT will read them). I think it was scanned at 200 DPI which makes smaller files. Under Australian copyright law, since this book is unavailable, and will not be available for the next 90 days, is able to be copied for private study. I assume the same law applies to the rest of teh world. The 350 or so files take up 27 MBytes - Which is quite large. I have not yet put them through an OCR which is my custom - I have about 10,000 pages of personal information (Magazines, Thesis material etc) scanned. I am quite happy to distribute this book provided it is to a location where such copying is legal - for teh purposes of private study. 26 MBytes is a lot of information. I can put this onto a ZIP disk or CD-ROM which might be easier for some poepl to handle. DISCLAIMER: The offer of this book is being made as it is unavailable from stores subject to copyright restrictions. Darryl Smith VK2TDS@Ozemail.com.au Sydney, Australia From stoskopf@tri.net Sun Dec 14 17:45:07 1997 Received: from styx.tri.net (root@styx.tri.net [205.153.244.6]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id RAA16108 for ; Sun, 14 Dec 1997 17:45:05 -0600 (CST) Received: from mine (g4.tri.net [205.153.244.137]) by styx.tri.net (8.8.3/8.8.3) with ESMTP id RAA24841 for ; Sun, 14 Dec 1997 17:44:52 -0600 Message-ID: <34946F65.15C6FE9E@tri.net> Date: Sun, 14 Dec 1997 17:44:37 -0600 From: Lawrence Stoskopf Reply-To: stoskopf@tri.net X-Mailer: Mozilla 4.01 [en] (Win95; I) MIME-Version: 1.0 To: ss@tapr.org Subject: Re: [SS:1890] Re:Ziemler and Peterson X-Priority: 3 (Normal) References: <349266C7.3A871587@ozemail.com.au> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Darryl Smith wrote: > OK - I just checked, I do have Zeimler and Peterson here; Scanned in > using Tiff > Group 1 one file per page (Imageing for windows which comes free with > windows 95/NT > will read them). I think it was scanned at 200 DPI which makes smaller > files. > > Under Australian copyright law, since this book is unavailable, and > will not be > available for the next 90 days, is able to be copied for private > study. I assume the > same law applies to the rest of teh world. > > The 350 or so files take up 27 MBytes - Which is quite large. I have > not yet put > them through an OCR which is my custom - I have about 10,000 pages of > personal > information (Magazines, Thesis material etc) scanned. > > I am quite happy to distribute this book provided it is to a location > where such > copying is legal - for teh purposes of private study. 26 MBytes is a > lot of > information. I can put this onto a ZIP disk or CD-ROM which might be > easier for some > poepl to handle. > > DISCLAIMER: The offer of this book is being made as it is unavailable > from stores > subject to copyright restrictions. > > Darryl Smith > VK2TDS@Ozemail.com.au > Sydney, Australia Put me down for either type copy. N0UU From jh0mrp@dl.hlb.casio.co.jp Mon Dec 15 05:56:15 1997 Received: from sj1.casio.co.jp (sj1.casio.co.jp [202.248.149.130]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id FAA10880 for ; Mon, 15 Dec 1997 05:56:12 -0600 (CST) Received: from lime.casio.co.jp ([192.168.50.5]) by sj1.casio.co.jp (8.8.8+2.7Wbeta7/3.6Wbeta7-magical-Mau Ver.2) with ESMTP id UAA07993; Mon, 15 Dec 1997 20:56:08 +0900 (JST) Received: from dlgw.dl.hlb.casio.co.jp (dlgw.dl.hlb.casio.co.jp [134.1.23.192]) by lime.casio.co.jp (8.7.6+2.6Wbeta7/3.5Wbeta-Saver Marionette J Ver. lime 1.0) with ESMTP id UAA11284; Mon, 15 Dec 1997 20:56:07 +0900 (JST) Received: from illusion.dl.hlb.casio.co.jp (illusion.dl.hlb.casio.co.jp [134.1.23.66]) by dlgw.dl.hlb.casio.co.jp (8.8.5/3.5Wpl7-CASIO Device Lab.) with SMTP id UAA15383; Mon, 15 Dec 1997 20:56:05 +0900 (JST) Date: Mon, 15 Dec 1997 20:56:05 +0900 (JST) From: Katsuhiko MOROSAWA To: ss@tapr.org Cc: prug96@netadm.ntt-at.co.jp Subject: The 2nd SS experiment in Japan Message-Id: <34951AD51CC.85A4.jh0mrp@dl.hlb.casio.co.jp> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Mailer: Becky! ver 1.23 Last Sunday, we practiced 2nd SS experiment in Kofu-Valley, Yamanashi prefecture, and tried long-distance QSO. The system were almost same as what we had used in the 1st experiment in Kitakyushu (and Shimonoseki). The output power of SS transceiver was less than 100mW (maybe 20mW or so) and the antenna was 27 elements beam which has 24dbi of front gain. This time, we set one station on the top of Budogaoka (which means the hill of grapes, in Japanese). Another members moved around Kofu area, and operated from 4 different points. Point A (5 kilo meters from Budogaoka): Ping statistics was 100%, quite good. We tried WWW browsing from both direction and voice conversation with cool talk. Both of them worked very comfortable, simultaneously. Point B (15 kilo meters from Budogaoka): Ping statistics was 100%, but the direction of antenna was more severe than it was at point A. We tried keyboard chat with the talk command and didn't feel any frustration at all. Although we didn't try browsing nor voice chat between point B and Budogaoka, we were convinced that it worked well if we tried it, because ping statistics was 100%. Point C and D (30 kilo meters from Budogaoka): Ping statistics was nearly 20% at its peak. The condition was bad and unstable. We measured BER and it was almost 1E-2. I think a few db would be enough to make the condition stable. I will report more precisely on my webpage, soon. Attendance: 7M3LCG,JE1WAZ,JF1PXI,JH1FBM,JJ1CEI,JK1MLY,JN1JDZ, JQ1VIE,JS1DCF and 7K1NCP -- Katsuhiko "Kay" MOROSAWA (JH0MRP, 7K1NCP) http://www2s.biglobe.ne.jp/~jh0mrp/ From wd5ivd@tapr.org Thu Dec 25 18:26:24 1997 Received: from [206.138.226.73] (dto03-17.ppp.iadfw.net [206.138.226.114]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id SAA27095; Thu, 25 Dec 1997 18:26:15 -0600 (CST) Message-Id: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Date: Thu, 25 Dec 1997 18:17:14 -0600 To: "TAPR-BB list mailing", "HF SIG list mailing", " Spread Spectrum ", " TAPR/AMSAT DSP ", "APRS SIG list mailing", "NETSIG list mailing", "BBS SIG list mailing", " tacgps ", " MIC-E Beta " From: "Greg Jones, WD5IVD" Subject: Nominations Sought for TAPR Board of Directors Nominations Sought for TAPR Board of Directors (as printed in 1997 PSR #68, p. 34) Tucson Amateur Packet Radio is incorporated in the State of Arizona as a non-profit scientific and educational institution. It is recognized by the IRS as a 501(c)3 tax-exempt organization for these same purposes. TAPR is governed by a 9-member Board of Directors. Each member of the Board serves a three year term. Every year three positions are up for election. Board members are expected to attend two board meetings held in conjunction with the Dayton Hamvention and the ARRL and TAPR Digital Communications Conference. They participate in the decision-making process and provide guidance to the officers. They receive no pay and must defray most of their own expenses to attend meetings. Board members should be prepared to be active in the continuing Board deliberations, which are conducted via the Internet. Active participation in TAPR activities by Board members is important to the furtherance of the objectives of TAPR. The officers of TAPR are elected by the members of the Board at the annual Board of Directors meeting. The current members of the Board of Directors and their expiration dates of their terms are: * John Ackermann, AG9V 1998 Vice President * Jim Neely, WA5LHS 1998 Treasurer * Barry McLarnon, VE3JF 1998 Steve Bible, N7HPR 1999 Gary Hauge, N4CHV 1999 Bob Hansen, N2GDE 1999 PSR Editor Greg Jones, WD5IVD 2000 President John Koster, W9DDD 2000 Mel Whitten, K0PFX 2000 Nominations are now open for seats expiring in March 1998 (marked with an asterisk). To place a person in nomination, please remember that he or she must be a member of TAPR. Confirm that the individual is willing to have their name placed in nomination. Send that person's name (or your own if you wish to nominate yourself) along with your call and their call, telephone numbers, mailing address, and Internet address. The person nominated should submit a short biographical sketch to be published along with the ballot. Nominations and biographical sketches should be submitted to the TAPR office no later than December 31st, 1997. Ballots will be mailed with the next PSR. TAPR will again use an Internet ballot, so read your ballot carefully. Results will be announced on March 30th, 1998. Responsibilities of a board member include: 1) Attendance at both board meetings each year. 2) Regular participation with the continuous session of the board (currently held over the Internet). Typically this requires a minimum of 3 hours a week, although sometimes much more is required during active board discussions. 3) Participation with TAPR projects as volunteered. Board members, while not required, are involved with various project management, ongoing organization and/or supervision/liaison positions. Active board participation with various projects make many of the most important projects and tasks possible. Board members are expected to take an active part in TAPR in some form. All nominated members will be placed on the ballot and the highest vote receivers will be placed in the open board positions. If elected, two board meetings in 1998 will be held. One will be during Dayton Hamvention and the other during the ARRL and TAPR Digital Communications Conference. All directors shall serve for a term of three years. ---------------------------------------------------------------------------- Tucson Amateur Packet Radio 8987-309 E Tanque Verde Rd #337 * Tucson, Az * 85749-9399 ---------------------------------------------------------------------------- e-mail: tapr@tapr.org web: ftp: ftp.tapr.org phone: 940-383-0000 fax: 940-565-2544 ---------------------------------------------------------------------------- From jra@febo.com Sat Dec 27 09:42:10 1997 Received: from meow.febo.com (root@router.febo.com [207.238.207.161]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id JAA17116 for ; Sat, 27 Dec 1997 09:42:08 -0600 (CST) Received: from meow.febo.com (jra@localhost [127.0.0.1]) by meow.febo.com (8.8.5/8.7.3) with ESMTP id KAA29714 for ; Sat, 27 Dec 1997 10:42:01 -0500 Message-Id: <199712271542.KAA29714@meow.febo.com> X-Mailer: exmh version 1.6.9 8/22/96 To: ss@tapr.org Subject: 900 MHz Data Radios for Sale Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Sat, 27 Dec 1997 10:42:00 -0500 From: John Ackermann N8UR (This isn't quite on topic, but Greg suggested that folks here might be interested in this.) Our club was given several non-spread spectrum data radios operating in the 950MHz range. I believe that they can be converted to 902-928, but the manufacturer has given us some conflicting information (different people saying different things) and frankly we don't have the time to figure it out. So, we'd like to sell them and turn the proceeds into some spread spectrum gear (see, there *is* a connection with this mailing list after all!). Here are the details: Manufacturer: Multipoint Networks, Inc. (still in business in California). Models: 4 each RAN-64 (64kbps full duples, 2 each RAN-128 (128kbps, full duplex) These make three matched pair of radios. All are full duplex, 5 watt output, with heavy duty duplexers (they operate with a 3.6 MHz split at 950MHz!). I/O is RS-422 synchronous; when I looked at the information, it appears they should interface to an Ottawa PI card with a couple of level conversion chips. The radios are early 1990s manufacture, and the company is still in business. They use a QPSK style modulation scheme, and are semi-synthesized -- an EPROM and dip switches provide a number of channels in a couple of MHz range. The 64kpbs radios operate in 100kHz channels, while the 128kpbs units are spaced at 200kHz. We have a limited amount of documentation available; support is still available from the manufacturer. The radios are in cabinets 17" wide x 13" deep x 3 3/4" high; the duplexers are the same footprint but are 5 1/4" high. The radios have self-contained 110 volt power supplies. These units were in service for about three years (actually, one pair is a spare set that's only had a few hours of operating time) and are in excellent condition. Although they're primarily intended for full duplex point-to-point operation, it appears that the radios can also be configured to operate as half-duplex RF repeater. In addition to the radios, if someone wants to pick them up in Dayton we also have four "paraflector" clipped dish antennas about five feet wide and three feet high that were used with this equipment. I'm sure this gear must have cost a fortune, but I have no idea what its current worth is. If you're interested, drop me an email and we can talk. 73, John N8UR (ex-AG9V) jra@febo.com From wd5ivd@tapr.org Tue Dec 30 00:03:54 1997 Received: from [206.138.226.117] (dto03-20.ppp.iadfw.net [206.138.226.117]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id AAA07025 for ; Tue, 30 Dec 1997 00:03:52 -0600 (CST) Message-Id: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Date: Tue, 30 Dec 1997 00:03:36 -0600 To: " Spread Spectrum " From: "Greg Jones, WD5IVD" Subject: Transmission Line Attenuation Chart I just put up a new page on the TAPR SS page called Transmission Line Attenuation Chart. The information is collected from several places, but mainly from the Hutton catalog. Seems that I keep getting asked this question at various talks and presentations, so figure I can now point to this page. The plan is to actually turn the page into a sort of snapshot on coax and connectors over time. What to get and possibly what to avoid -- like those screw on N-connectors that ham stories seem to try to get you to purchase ;-) along with a few pictures. Who sales what and the suggested retail prices from the mfg to help estimate how much money you might be spending. That extra $1.00 a foot might be worth it a 2.4G with a 200mw radio :-) Anyway, take a look. http://www.tapr.org/tapr/html/coax.html Cheers - Greg ----- Greg Jones, WD5IVD Austin, Texas wd5ivd@tapr.org http://www.tapr.org/~wd5ivd From jra@febo.com Tue Dec 30 07:05:26 1997 Received: from meow.febo.com (root@router.febo.com [207.238.207.161]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id HAA12920 for ; Tue, 30 Dec 1997 07:05:23 -0600 (CST) Received: from meow.febo.com (jra@localhost [127.0.0.1]) by meow.febo.com (8.8.5/8.7.3) with ESMTP id IAA07336 for ; Tue, 30 Dec 1997 08:05:18 -0500 Message-Id: <199712301305.IAA07336@meow.febo.com> X-Mailer: exmh version 1.6.9 8/22/96 To: ss@tapr.org Subject: Re: [SS:1895] Transmission Line Attenuation Chart In-reply-to: Your message of "Tue, 30 Dec 1997 00:08:49 CST." Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Tue, 30 Dec 1997 08:05:18 -0500 From: John Ackermann N8UR > I just put up a new page on the TAPR SS page called Transmission Line > Attenuation Chart. The information is collected from several places, but > mainly from the Hutton catalog. Good info -- particularly since a lot of charts don't sho figures for 900MHz directly and you have to extrapolate. If you can find it, you might want to add info on the CATV aluminum hardlines. I'll see if I have anything on them. John From bm@lynx.ve3jf.ampr.org Tue Dec 30 11:16:31 1997 Received: from lynx.ve3jf.ampr.org (bm@pc-18446.on.rogers.wave.ca [24.112.93.218]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id LAA23865 for ; Tue, 30 Dec 1997 11:16:18 -0600 (CST) From: bm@lynx.ve3jf.ampr.org Received: (from bm@localhost) by lynx.ve3jf.ampr.org (8.8.5/8.8.5) id RAA24721 for ss@tapr.org; Tue, 30 Dec 1997 17:16:08 GMT Message-Id: <199712301716.RAA24721@lynx.ve3jf.ampr.org> Date: Tue, 30 Dec 1997 17:16:07 +0000 (GMT) To: ss@tapr.org Subject: Re: [SS:1895] Transmission Line Attenuation Chart In-Reply-To: X-Mailer: Ishmail 1.3.1-961106-linux MIME-Version: 1.0 Content-Type: text/plain "Greg Jones, WD5IVD" wrote: > > I just put up a new page on the TAPR SS page called Transmission Line > Attenuation Chart. The information is collected from several places, but > mainly from the Hutton catalog. > > Seems that I keep getting asked this question at various talks and > presentations, so figure I can now point to this page. > > The plan is to actually turn the page into a sort of snapshot on coax and > connectors over time. What to get and possibly what to avoid -- like those > screw on N-connectors that ham stories seem to try to get you to purchase > ;-) along with a few pictures. Who sales what and the suggested retail > prices from the mfg to help estimate how much money you might be spending. > That extra $1.00 a foot might be worth it a 2.4G with a 200mw radio :-) > > Anyway, take a look. http://www.tapr.org/tapr/html/coax.html You may recall that I had a similar table at the end of my DCC paper on RF propagation. The table is available separately at: http://hydra.carleton.ca/articles/atten-table.html Feel free to grab it and merge it with yours, or whatever. I haven't compared them to see if they agree or not. :-) -Barry ps: for anyone who missed it, the full paper is at http://hydra.carleton.ca/articles/ve3jf-dcc97.html -- Barry McLarnon VE3JF/VA3TCP | Internet: bm@hydra.carleton.ca Ottawa Amateur Radio Club | AMPRnet: bm@lynx.ve3jf.ampr.org Packet Working Group | Web: http://hydra.carleton.ca From wd5ivd@tapr.org Tue Dec 30 13:35:17 1997 Received: from [206.138.226.138] (dto03-13.ppp.iadfw.net [206.138.226.110]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id NAA08747 for ; Tue, 30 Dec 1997 13:35:15 -0600 (CST) Message-Id: In-Reply-To: <199712301305.IAA07336@meow.febo.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Date: Tue, 30 Dec 1997 13:32:26 -0600 To: ss@tapr.org From: "Greg Jones, WD5IVD" Subject: Re: [SS:1896] Re: Transmission Line Attenuation Chart If you can locate the information, will be glad to add it. Greg >> I just put up a new page on the TAPR SS page called Transmission Line >> Attenuation Chart. The information is collected from several places, but >> mainly from the Hutton catalog. > >Good info -- particularly since a lot of charts don't sho figures for >900MHz directly and you have to extrapolate. > >If you can find it, you might want to add info on the CATV aluminum >hardlines. I'll see if I have anything on them. > >John ----- Greg Jones, WD5IVD Austin, Texas wd5ivd@tapr.org http://www.tapr.org/~wd5ivd From wd5ivd@tapr.org Tue Dec 30 13:42:22 1997 Received: from [206.138.226.138] (dto03-13.ppp.iadfw.net [206.138.226.110]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id NAA08957 for ; Tue, 30 Dec 1997 13:42:20 -0600 (CST) Message-Id: In-Reply-To: <199712301716.RAA24721@lynx.ve3jf.ampr.org> References: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Date: Tue, 30 Dec 1997 13:42:03 -0600 To: ss@tapr.org From: "Greg Jones, WD5IVD" Subject: Re: [SS:1897] Re: Transmission Line Attenuation Chart Thanks Barry. Forgot about that one. I'll be sure to grab the 5.8G entrys and add those. Greg > >You may recall that I had a similar table at the end of my DCC paper on RF >propagation. The table is available separately at: > >http://hydra.carleton.ca/articles/atten-table.html > >Feel free to grab it and merge it with yours, or whatever. I haven't >compared them to see if they agree or not. :-) > >-Barry > >ps: for anyone who missed it, the full paper is at > >http://hydra.carleton.ca/articles/ve3jf-dcc97.html > > > >-- > Barry McLarnon VE3JF/VA3TCP | Internet: bm@hydra.carleton.ca > Ottawa Amateur Radio Club | AMPRnet: bm@lynx.ve3jf.ampr.org > Packet Working Group | Web: http://hydra.carleton.ca ----- Greg Jones, WD5IVD Austin, Texas wd5ivd@tapr.org http://www.tapr.org/~wd5ivd