From louis_cobet@email.msn.com Tue Aug 04 23:08:38 1998 Received: from UPIMSSMTPUSR04 (smtp.email.msn.com [207.68.143.160]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id XAA15007 for ; Tue, 4 Aug 1998 23:08:37 -0500 (CDT) Received: from MSNLouisCobet - 153.37.28.213 by email.msn.com with Microsoft SMTPSVC; Tue, 4 Aug 1998 21:08:04 -0700 Message-ID: <002d01bdc026$99193c20$d51c2599@MSNLouisCobet> From: "Louis Cobet" To: Subject: Re: 900 MHz ss project Date: Tue, 4 Aug 1998 21:07:42 -0700 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.0518.4 X-MimeOLE: Produced By Microsoft MimeOLE V5.00.0518.4 When TAPR goes into beta on the 900 MHz. project, I would be interested in participating. The San Francisco bay area should be very interesting to test in. Louis Cobet, K6MDH louis_cobet@email.msn.com From n3eop@hotmail.com Wed Aug 05 18:23:46 1998 Received: from hotmail.com (f42.hotmail.com [207.82.250.53]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id SAA19838 for ; Wed, 5 Aug 1998 18:23:45 -0500 (CDT) Received: (qmail 6453 invoked by uid 0); 5 Aug 1998 23:23:13 -0000 Message-ID: <19980805232313.6452.qmail@hotmail.com> Received: from 207.126.116.155 by www.hotmail.com with HTTP; Wed, 05 Aug 1998 16:23:13 PDT X-Originating-IP: [207.126.116.155] From: "Paul Christenson" To: ss@tapr.org Subject: Re: 900 MHz ss project Content-Type: text/plain Date: Wed, 05 Aug 1998 16:23:13 PDT >When TAPR goes into beta on the 900 MHz. project, I would be >interested in participating. The San Francisco bay area should be >very interesting to test in. Same here. It'll be interesting to measure its performance against some of our older (900 MHz part 15) DS stuff. (I have access to all the neat test equipment here at Cylink Wireless.) de N3EOP ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com From wd5ivd@tapr.org Sun Aug 09 12:22:11 1998 Received: from [168.191.230.109] ([168.191.230.109]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id MAA16177; Sun, 9 Aug 1998 12:22:01 -0500 (CDT) Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Message-Id: Date: Sun, 9 Aug 1998 12:20:14 -0600 To: "TAPR-BB list mailing" From: "Greg Jones, WD5IVD" Subject: 1998 ARRL and TAPR Digital Communications Conference Cc: "HF SIG list mailing", " Spread Spectrum ", " TAPR/AMSAT DSP ", "APRS SIG list mailing", "NETSIG list mailing", "BBS SIG list mailing", " tacgps ", aprsnews@tapr.org, mic-e@tapr.org, TAPR Regional Freq 1998 ARRL and TAPR Digital Communications Conference September 25-27, 1998 Chicago, Illinois (minutes from O'Hare Airport) Web: http://www.tapr.org/dcc ----- The 1998 ARRL and TAPR Digital Communications Conference will be held September 25-27, 1998, in Chicago, Illinois. This year's conference location is the Holiday Inn Rolling Meadows, just minutes from O'Hare Airport. Not only is the Digital Communications Conference technically stimulating, it is a weekend of fun for all who have more than a casual interest in any of the ham digital communications modes. This includes APRS operators, digital networks, software writers, modem designers, and digital satellite enthusiasts. The ARRL and TAPR Digital Communications Conference is for all levels of digital operators -- a must conference to attend to become active on a national level. Now, more than ever, amateur radio needs this great meeting of the minds because it is important that we demonstrate a continued need for the frequency allocations we have by pushing forward and documenting our achievements. The ARRL and TAPR Digital Communications Conference is one of the few ways to record our accomplishments and challenge each other to do more. ----- A Conference for the Beginner, Too The conference is not just for the digital expert. This year's conference again provides multiple session tracks for beginning, intermediate, and advanced presentations on selected topics in digital communications. Topics will include APRS, satellite communications, TCP/IP, digital radio, Spread Spectrum, and many others. Come to the conference and hear these topics presented by the experts! Don't miss this opportunity to listen and talk to others in these areas. ----- Symposia and Seminars In addition to the presentation of papers on Saturday, three symposia/seminars will be held. These sessions are provided to allow those with additional time and interest to make the most of the Digital Communications Conference. For those who may have interest in just one symposium or seminar, registration for the conference is not required to attend these activities. This allows maximum flexibility for those who may want to participate during the Digital Communications Conference, but do not have an entire weekend to devote to the event. The Second APRS National Symposium will be held on Friday and will be moderated by Steve Dimse, K4HG (the developer of javAPRS). It will likely include many APRS software authors, such as Bob Bruninga, WB4APR (the father of APRS), Keith Sproul, WU2Z, Mark Sproul, KB2ICI (the developers of MacAPRS and WinAPRS), Brent Hildebrand, KH2Z (the developer of APRSPLUS), and other nationally-known APRS leaders. Join this group for the afternoon and evening for in-depth discussions and presentations on the current and future status of APRS. This is a unique opportunity to gain insight into this fast-growing digital aspect of amateur operations that combines computers, packet radio, and GPS (Global Positioning System). Starting late Friday afternoon, a half-day seminar titled "Infrastructureless Technologies in Amateur Radio," presented by Don Lemke, WB9MJN, will cover the pros and cons of DDMA (directivity division multiple access, a proposed infrastructureless technique) versus hubbed (cellular style) and other infrastructure dependent techniques, the basic problem of megabaud rate communications into the ham QTH, and some techniques for channel-area acquisition including full duplex/asynchronous versus simplex/synchronous radio/acquisition concepts. This seminar will start late enough on Friday afternoon to allow those flying that day to attend the seminar. The Sunday morning seminar will be a combination of two different talks that will make one excellent seminar. The first presentation, by Lyle Johnson, WA7GXD, will focus on the upcoming RUDAK digital communications system scheduled to fly on the AMSAT Phase 3D satellite in the near future. Lyle will discuss features, systems design, integration, and experiments. The goal of the presentation is to zero in on the communications capabilities of RUDAK, the performance to be expected from the 153k6 PSK system, the limitations and capacities of the DSP modems, user requirements for receiving RUDAK, requirements for transmitting to RUDAK, and how amateurs can work to make ground operations a reality once the satellite is in operation. Information on how to submit a proposal for experimental time on RUDAK will be presented. The second presentation will be by Tim Shepard, KD1KY, regarding "Packet Radio Networks with Millions or Billions of Stations." This talk will present concepts and materials that make you think about different possibilities of networking in the future. Both Lyle's and Tim's presentations focus on different aspects of future digital communications possibilities. ----- Third Annual ARRL and TAPR DCC Student Papers Award The deadline for the third annual ARRL and TAPR Student papers is past, please think about having students submit next year for the travel awards. TAPR and the ARRL especially welcome papers from full-time students to compete for these student papers award. Two $500 travel awards may be given, one in each of the following categories: a) best technical/theory-oriented paper by a student, and b) best educational or community-oriented application paper by a student. The paper should relate directly to a wireless digital communication topic (see the guidelines for more information). Papers co-authored by educators or telecommunications professionals are also eligible for this award as long as a student is the first author. The deadline for receipt of finished student paper manuscript is June 20, 1999. Please note that this deadline is different from the general conference paper submission date. For full details and paper guidelines contact TAPR or browse to http://www.tapr.org/dcc. ----- Call for Conference Proceeding Papers Anyone interested in digital communications is invited to submit a paper for publication in the Conference Proceedings. Presentation at the conference is not required for publication. The primary purpose of the conference is to communicate ideas and techniques regarding digital communications. Papers written in an informal style are welcome, as well as those written to academic standards. If you know of someone who is doing great things with digital communications, be sure to tell them about this! Papers are due by August 15, 1998, and should be submitted to Maty Weinberg, ARRL, 225 Main Street, Newington, CT 06111, or via e-mail to lweinberg@arrl.org. The paper submission guidelines are available on-line (http://www.tapr.org/dcc). ----- Local/International Co-Host The 1998 ARRL and TAPR Digital Communications Conference will be co-hosted by Chicago Amateur Packet Radio Association (CAPRA). CAPRA is one of the oldest packet radio groups in the US. It focuses on education about amateur packet radio, coordination of joint efforts of hams interested in packet radio, and technical and equipment support for a sound packet network in the Chicago area. They have had high-speed packet networks operational since the mid-1980s. Visit the CAPRA Web site at http://www.imaxx.net/capra for more information. PRUG (Packet Radio User Group of Japan) will be the first International co-host of the ARRL and TAPR Digital Communications Conference. The conference is proud to welcome PRUG as part of the conference. PRUG will be hosting an informal social Friday evening after the seminar and symposium are completed. Visit http://www.prug.or.jp for more information about the organization. ----- What can you expect during the 1998 ARRL and TAPR Digital Communications Conference? * A full day of papers, breakout sessions, and selected topics on Saturday for the beginner to advanced amateur digital enthusiast. * Three seminars/symposia Friday (1 PM) - Second Annual APRS National Symposium, moderated by Steve Dimse, K4HG Friday (3 PM) - Infrastructure Technologies in Amateur Radio conducted by Don Lemke, WB9MJN Sunday (8:30 AM) - RUDAK Future Operations and Experimentations by Lyle Johnson, WA7GXD - Packet Radio Networks with Millions or Billions of Stations by Tim Shepard, KD1KY * Third Annual Student Paper Awards. * TAPR Membership Meeting * A banquet with special guest speaker Steve Roberts, N4RVE, of Nomadic Research Labs. Creator of the Winnebiko and Behemoth high-tech recumbent bicycles. His current project is focused on Microship technology (http://www.microship.com/). * SIGs (Special Interest Groups) get-togethers on Saturday, following the banquet * Informal get-togethers throughout the weekend * A facility that is perfect for this type of conference * Informal engineering discussions/demonstration areas * Motorola Museum located in the area. * An event at which the most important new developments in amateur digital communications are announced * Digital 'movers and shakers' from all over the world in attendance ----- Conclusion If you have attended a Digital Communications Conference in the past, remember how much fun it was discussing the latest developments into the wee hours! If you have never been to a Digital Communications Conference, then make your plans now to attend and find out how much fun they can be. There are few activities where your participation can be so much fun and so important! You will be able to get together with colleagues from all over the world and bring each other up to date on your latest work. Experience all this and more for an unforgettable weekend of ham radio and digital communications. Make your travel and lodging arrangements now. We hope to see you at the ARRL and TAPR Digital Communications Conference, September 25-27! Full information on the conference and hotel information can be obtained by contacting Tucson Amateur Packet Radio, 8987-309 E. Tanque Verde Road #337, Tucson, AZ 85749-9399, phone 940-383-0000, fax 940-566-2544, e-mail tapr@tapr.org, browse www.tapr.org/dcc. Sincerely, Steve Ford, WB8IMY, ARRL Conference Co-Chair Greg Jones, WD5IVD, TAPR Conference Co-Chair Steve Stroh, N8GNJ, Conference Manager Mark J. Thompson, WB9QZB, Local Host Liaison Carl Bergstedt, K9VXW, Local Host Liaison Note: If you need conference handouts or flyers for ham club meetings, contact TAPR to get what you need! ----- Hotel Information Conference presentations, meetings, and seminars will be held at the Holiday Inn Rolling Meadows. Special DCC rooms rates are $85 per night. When making reservations with the hotel, be sure to indicate you are attending the ARRL and TAPR DCC in order to get the discount. It is highly recommended that you book your room prior to arriving. A block of 75 rooms is reserved until August 31, 1998. After the 75 rooms are booked, rooms will only be available in nearby hotels, so be sure to book your rooms early! The hotel provides transportation to and from O'Hare Airport. Please contact the hotel to arrange specific transportation needs. Holiday Inn Rolling Meadows (conference hotel) 3405 Algonquin Rd Rolling Meadows, IL 60008 Phone 847-259-5000, fax 847-259-0597 ---------------------------------------------------------------------------- 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 kd4dla@amsat.org Wed Aug 19 15:08:25 1998 Received: from megsinet.net (mail.megsinet.net [208.133.72.77]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id PAA04631 for ; Wed, 19 Aug 1998 15:08:24 -0500 (CDT) Received: from default(max1-2.detroit.megsinet.net[208.150.58.130]) (627 bytes) by megsinet.net via sendmail with P:smtp/R:inet_hosts/T:smtp (sender: ) id for ; Wed, 19 Aug 1998 15:08:14 -0500 (CDT) (Smail-3.2.0.101 1997-Dec-17 #12 built 1998-Feb-6) Message-ID: <35DB30B6.24D1@amsat.org> Date: Wed, 19 Aug 1998 16:08:22 -0400 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: Detroit Spread Spectrum? Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Just wondering if there is anyone in the Detroit/Downriver,MI area using or interested in Spread Spectrum? James KD4DLA From jeff@aerodata.net Thu Aug 20 03:54:21 1998 Received: from aerodata.net (aerodata.mich.com [198.108.18.17]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id DAA23442 for ; Thu, 20 Aug 1998 03:54:16 -0500 (CDT) Received: from alfalfa (alfalfa.aerodata.net [198.108.18.18]) by aerodata.net (8.8.7/8.8.7) with SMTP id FAA07346; Thu, 20 Aug 1998 05:12:28 -0400 Message-Id: <3.0.5.32.19980820044908.008b5720@aerodata.net> X-Sender: jeff@aerodata.net (Unverified) X-Mailer: QUALCOMM Windows Eudora Pro Version 3.0.5 (32) Date: Thu, 20 Aug 1998 04:49:08 -0400 To: ss@tapr.org, James Clay French KD4DLA From: Jeff King Subject: Re: [SS:2005] Detroit Spread Spectrum? In-Reply-To: <35DB30B6.24D1@amsat.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" James: I've been using (and this is coming over) a pair of Freewaves to get to my local ISP (about 2 miles) for the last 2 years or so. These are 173kbaud frequency hoppers. I'm in Farmington about 15 miles from you. I've also got some stuff installed in Ann Arbor but that is a commercial venture. I also have some Lucent Wavelan cards and have used the Netwave and Proxium units as well. There was a group of guys in Ann Arbor (Jay Nugent, et. all) that were going to be doing something with SS but I think they never did anything when the TAPR deal fell through. What did you have in mind? Jeff wb8wka At 03:12 PM 8/19/98 -0500, James Clay French KD4DLA wrote: >Just wondering if there is anyone in the Detroit/Downriver,MI area using >or interested in Spread Spectrum? > >James KD4DLA ------------------------------------ | Jeff King Aero Data Systems | | jeff@mich.com P.O. Box 510895 | | (248)471-1787 Livonia, MI 48151 | |F(248)471-0279 United States | ------------------------------------ From prabhs@hotmail.com Thu Aug 20 11:03:58 1998 Received: from hotmail.com (f33.hotmail.com [207.82.250.44]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id LAA16437 for ; Thu, 20 Aug 1998 11:03:56 -0500 (CDT) Received: (qmail 23147 invoked by uid 0); 20 Aug 1998 16:03:25 -0000 Message-ID: <19980820160325.23146.qmail@hotmail.com> Received: from 209.156.11.32 by www.hotmail.com with HTTP; Thu, 20 Aug 1998 09:03:24 PDT X-Originating-IP: [209.156.11.32] From: "prabhakar subrahmanyam" To: ss@tapr.org Subject: Re: [SS:2005] Detroit Spread Spectrum? Content-Type: text/plain Date: Thu, 20 Aug 1998 09:03:24 PDT >Just wondering if there is anyone in the Detroit/Downriver,MI area using >or interested in Spread Spectrum? > >James KD4DLA > > hi i am interested in it.... but i belong to ur neighbouring state..... prabhakar ************************************************************ S. Prabhakar 1731, Locust Place Apartment 111 Schaumburg Ilinois - 60173 Tel : 847-925-0509 (res) prabhs@hotmail.com rocketeer@goplay.com http://www.angelfire.com/me/prabhs \\\\\\|////// \\ ~ ~ // ) @|@ ( ******-oOOo-)_(-oOOo-****** hey, u r born to lead, so lead, r get out of the way !!! ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com From rra@fee.unicamp.br Thu Aug 20 11:29:41 1998 Received: from berilio.fee.unicamp.br (berilio.fee.unicamp.br [143.106.8.41]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id LAA17492 for ; Thu, 20 Aug 1998 11:29:38 -0500 (CDT) Received: from localhost (rra@localhost) by berilio.fee.unicamp.br (8.8.5/8.7.3) with SMTP id NAA29107 for ; Thu, 20 Aug 1998 13:41:04 -0300 (EST) Date: Thu, 20 Aug 1998 13:41:04 -0300 (EST) From: Ricardo Rodrigues De Araujo To: ss@tapr.org Subject: products for telemetry Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Does anyone know any company that produces equipments for telemetry. I am developing a telemetry network using SS and i haven't found any specific pruduct for it. Currently i'm using inovonics transmiters for home security aplications. Thanks in advance. Ricardo Araujo From compuman@eecs.umich.edu Thu Aug 20 11:56:22 1998 Received: from vulture.eecs.umich.edu (vulture.eecs.umich.edu [141.213.12.22]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id LAA18808 for ; Thu, 20 Aug 1998 11:56:21 -0500 (CDT) Received: from localhost by vulture.eecs.umich.edu (8.9.1/8.9.0) with SMTP id MAA28899 for ; Thu, 20 Aug 1998 12:55:49 -0400 (EDT) Date: Thu, 20 Aug 1998 12:55:49 -0400 (EDT) From: Eric Glover To: ss@tapr.org Subject: Re: [SS:2005] Detroit Spread Spectrum? In-Reply-To: <35DB30B6.24D1@amsat.org> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Hey, I am a grad student at University of Michigan in Ann Arbor, and I am *hoping* to find time to learn about this stuff to build a short range (1 mile) wireless lan... Ann Arbor is not immediately near downriver, but hey same State :-) CYA, Eric - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ...an enormous body of information science literature is based on work that *uses* relevance, without throughly understanding what it *means* ... without an understanding of what relevance means *to* users, it seems difficult to imagine how a system can retrieve relevant information *for* users. -- Schamber, 1990 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Eric Glover -- compuman@eecs.umich.edu Grad student hoping to finish before the year 2000! On Wed, 19 Aug 1998, James Clay French KD4DLA wrote: > Just wondering if there is anyone in the Detroit/Downriver,MI area using > or interested in Spread Spectrum? > > James KD4DLA > > From compuman@eecs.umich.edu Thu Aug 20 12:12:38 1998 Received: from vulture.eecs.umich.edu (vulture.eecs.umich.edu [141.213.12.22]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id MAA19701 for ; Thu, 20 Aug 1998 12:12:37 -0500 (CDT) Received: from localhost by vulture.eecs.umich.edu (8.9.1/8.9.0) with SMTP id NAA29342 for ; Thu, 20 Aug 1998 13:12:07 -0400 (EDT) Date: Thu, 20 Aug 1998 13:12:06 -0400 (EDT) From: Eric Glover To: ss@tapr.org Subject: Re: [SS:2006] Re: Detroit Spread Spectrum? In-Reply-To: <3.0.5.32.19980820044908.008b5720@aerodata.net> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Hey, I am a grad student at Univ of Michigan in Ann Arbor, MI and I have been trying to learn about this stuff to attempt to get a wireless LAN going to conect up to campus, and some friends...can you say Quake :-) If anyone around here (in SE Michigan area) is interested in helping me out...Or has knowledge of this stuff drop me an e-mail. compuman@eecs.umich.edu I am almost tempted to just buy one of those wireless LAN kits, but so far I have seen little for under $2K which claims to go more than 500 feet (when near buildings)... Thanks, Eric - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ...an enormous body of information science literature is based on work that *uses* relevance, without throughly understanding what it *means* ... without an understanding of what relevance means *to* users, it seems difficult to imagine how a system can retrieve relevant information *for* users. -- Schamber, 1990 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Eric Glover -- compuman@eecs.umich.edu Grad student hoping to finish before the year 2000! On Thu, 20 Aug 1998, Jeff King wrote: > James: > > I've been using (and this is coming over) a pair of Freewaves > to get to my local ISP (about 2 miles) for the last 2 years or > so. These are 173kbaud frequency hoppers. I'm in Farmington about > 15 miles from you. I've also got some stuff installed in Ann Arbor > but that is a commercial venture. > > I also have some Lucent Wavelan cards and have used the Netwave > and Proxium units as well. > > There was a group of guys in Ann Arbor (Jay Nugent, et. all) that > were going to be doing something with SS but I think they never > did anything when the TAPR deal fell through. > > What did you have in mind? > > Jeff wb8wka > > > At 03:12 PM 8/19/98 -0500, James Clay French KD4DLA wrote: > >Just wondering if there is anyone in the Detroit/Downriver,MI area using > >or interested in Spread Spectrum? > > > >James KD4DLA > > ------------------------------------ > | Jeff King Aero Data Systems | > | jeff@mich.com P.O. Box 510895 | > | (248)471-1787 Livonia, MI 48151 | > |F(248)471-0279 United States | > ------------------------------------ > > From frussle@erols.com Thu Aug 20 12:35:09 1998 Received: from smtp3.erols.com (smtp3.erols.com [207.172.3.236]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id MAA21161 for ; Thu, 20 Aug 1998 12:35:07 -0500 (CDT) Received: from 207-172-132-3.s3.tnt5.col.erols.com (207-172-132-3.s3.tnt5.col.erols.com [207.172.132.3]) by smtp3.erols.com (8.8.8/8.8.5) with SMTP id NAA21342 for ; Thu, 20 Aug 1998 13:35:05 -0400 (EDT) From: frussle@erols.com (Jake Brodsky) To: ss@tapr.org Subject: Re: [SS:2008] products for telemetry Date: Thu, 20 Aug 1998 17:32:50 GMT Reply-To: frussle@erols.com Message-ID: <35e05b1a.18290971@smtp.erols.com> References: In-Reply-To: X-Mailer: Forte Agent 1.5/32.451 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable On Thu, 20 Aug 1998 11:32:17 -0500 (CDT), you wrote: >Does anyone know any company that produces equipments for telemetry. I = am >developing a telemetry network using SS and i haven't found any specific >pruduct for it. Currently i'm using inovonics transmiters for >home security aplications. Over what distance? How much data? How fast do you want to get the information? How much security do you need? How do you want it displayed? =20 I work for a water and sewer utility with 130 remote telemetry sites. We use 928/952 MHz radios, leased lines, and microwave networks to collect and control utility information such as power consumption, pressures, tank levels, and so on. If you want further background and information, please e-mail me or call me at work (East Coast USA) 301-206-7173. =20 73, Jake Brodsky, AB3A mailto:frussle@erols.com "Beware of the massive impossible!" From n3eop@hotmail.com Thu Aug 20 13:37:55 1998 Received: from hotmail.com (f153.hotmail.com [207.82.251.32]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id NAA24217 for ; Thu, 20 Aug 1998 13:37:53 -0500 (CDT) Received: (qmail 18374 invoked by uid 0); 20 Aug 1998 18:37:22 -0000 Message-ID: <19980820183722.18373.qmail@hotmail.com> Received: from 207.126.116.155 by www.hotmail.com with HTTP; Thu, 20 Aug 1998 11:37:22 PDT X-Originating-IP: [207.126.116.155] From: "Paul Christenson" To: ss@tapr.org Subject: Re: products for telemetry Content-Type: text/plain Date: Thu, 20 Aug 1998 11:37:22 PDT >Does anyone know any company that produces equipments for telemetry. >I am developing a telemetry network using SS and i haven't found any >specific pruduct for it. Currently i'm using inovonics transmiters >for home security aplications. I normally try to keep my employment and my hobbies separate, but... If you're looking for the radios, we can help. Fill out the inquiry form on our web site ( http://www.cylinkwireless.com/inquiry.htm ), and go from there. I'm pretty sure we have a rep in Brazil. Paul ---------------------------------------------------------- Paul Christenson Airlink Wireless Systems Digital Hardware Engineer A P-Com Company Airlink Wireless Systems 910 Hermosa Ct (Formerly Cylink Wireless) Sunnyvale, CA 94086 408-328-5149 www.cylinkwireless.com Paul_Christenson@p-com.com ---------------------------------------------------------- ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com From jeff@aerodata.net Thu Aug 20 14:53:10 1998 Received: from aerodata.net (aerodata.mich.com [198.108.18.17]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id OAA27260 for ; Thu, 20 Aug 1998 14:53:07 -0500 (CDT) Received: from alfalfa (alfalfa.aerodata.net [198.108.18.18]) by aerodata.net (8.8.7/8.8.7) with SMTP id QAA07688; Thu, 20 Aug 1998 16:11:34 -0400 Message-Id: <3.0.5.32.19980820155301.03c91700@aerodata.net> X-Sender: jeff@aerodata.net (Unverified) X-Mailer: QUALCOMM Windows Eudora Pro Version 3.0.5 (32) Date: Thu, 20 Aug 1998 15:53:01 -0400 To: ss@tapr.org, compuman@eecs.umich.edu From: Jeff King Subject: Re: [SS:2010] Re: Detroit Spread Spectrum? In-Reply-To: References: <3.0.5.32.19980820044908.008b5720@aerodata.net> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" At 12:13 PM 8/20/98 -0500, Eric Glover wrote: >Hey, I am a grad student at Univ of Michigan in Ann Arbor, MI and I have > > >I am almost tempted to just buy one of those wireless LAN kits, but so far >I have seen little for under $2K which claims to go more than 500 feet >(when near buildings)... > Take a look at the Microwave tower on North Campus (near the ITI building). You'll see a 900mhz Yagi up about 200 feet.... thats being driven by a $400 Wavelan card over to a site in Dexter about 12 miles away. Also, the UofM aerospace department is using a pair of FreeWaves in their UAV project (its a unmanned aircraft... basically a big RC plane running QNX in a PC-104 platform). From what they told me, its never been out of range. Those are the OEM cards which were under $1000 each. Like any radio project, alot depends on the antenna. -Jeff ------------------------------------ | Jeff King Aero Data Systems | | jeff@mich.com P.O. Box 510895 | | (248)471-1787 Livonia, MI 48151 | |F(248)471-0279 United States | ------------------------------------ From atlas@quiknet.com Fri Aug 21 08:30:59 1998 Received: from mail.quiknet.com (mail.quiknet.com [207.183.249.4]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id IAA28480 for ; Fri, 21 Aug 1998 08:30:57 -0500 (CDT) Received: (qmail 17236 invoked from network); 21 Aug 1998 13:33:10 -0000 Received: from 196.241.2-1.rkln.pmpool.quiknet.com (HELO quiknet.com) (207.183.241.196) by mail.quiknet.com with SMTP; 21 Aug 1998 13:33:10 -0000 Message-ID: <35DD763A.6F9BF56@quiknet.com> Date: Fri, 21 Aug 1998 06:29:30 -0700 From: Robb Greathouse X-Mailer: Mozilla 4.05 [en] (Win95; U) MIME-Version: 1.0 To: "ss@tapr.org" Subject: Starting on N6GN's microwave project, looking for experience Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit With great trepidation I am about to start building the 2mbps microwave link published by N6GN in Ham Radio magazine. Has anyone else tried to build in and if so what was your experience? Robb GreatHouse atlas@quiknet.com From bb@wv.com Fri Aug 21 17:20:45 1998 Received: from kansas.pn.com (kansas.pn.com [204.96.36.40]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id RAA21156 for ; Fri, 21 Aug 1998 17:20:43 -0500 (CDT) Received: from battleship (auntiem.wv.com [205.136.66.19]) by kansas.pn.com (8.9.1/8.8.0) with ESMTP id SAA11486; Fri, 21 Aug 1998 18:20:40 -0400 (EDT) Received: (bb@localhost) by battleship (8.8.5/8.6.12) id SAA21945; Fri, 21 Aug 1998 18:18:46 -0400 Date: Fri, 21 Aug 1998 18:18:46 -0400 Message-Id: <199808212218.SAA21945@battleship> From: Brian Bartholomew To: ss@tapr.org Subject: [SS:2013] Re: Detroit Spread Spectrum? > You'll see a 900mhz Yagi up about 200 feet.... thats being driven by > a $400 Wavelan card over to a site in Dexter about 12 miles away. Aren't there distance limits to these inexpensive cards based on maximum ethernet time windows? I figured these cheap cards would use the incoming ethernet bits as the data framing, so you would be distance limited by the CD/CSMA ethernet timings. League for Programming Freedom (LPF) ftp://ftp.gnu.org/pub/lpf/patents.text ------------------------------------------------------------------------------- Brian Bartholomew - bb@wv.com - www.wv.com - Working Version, Cambridge, MA From rhettw@premier.net Fri Aug 21 20:51:24 1998 Received: from premier1.premier.net (premier1.premier.net [204.178.176.23]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id UAA10353 for ; Fri, 21 Aug 1998 20:51:22 -0500 (CDT) Received: from premier.net (ts7062.dialup.premier.net [206.124.198.62]) by premier1.premier.net (8.8.5/8.8.5) with ESMTP id UAA05003; Fri, 21 Aug 1998 20:51:18 -0500 (CDT) Message-ID: <35DE23AF.AF0742C9@premier.net> Date: Fri, 21 Aug 1998 20:49:35 -0500 From: Rhett Westerman Reply-To: rhettw@premier.net X-Mailer: Mozilla 4.04 [en] (Win95; U) MIME-Version: 1.0 To: ss@tapr.org Subject: Re: [SS:2014] Starting on N6GN's microwave project, looking for experience References: <35DD763A.6F9BF56@quiknet.com> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Robb, I missed this article but am interested in it. Which mag was this in? Thanks Robb Greathouse wrote: > > With great trepidation I am about to start building the 2mbps microwave > link published by N6GN in Ham Radio magazine. Has anyone else tried to > build in and if so what was your experience? > > Robb GreatHouse > atlas@quiknet.com -- Rhett Westerman rhettw@premier.net http://www.premier.net/~rhettw/index.htm From eddiehan@nlc.net.au Fri Aug 21 21:46:15 1998 Received: from nhj.nlc.net.au (nhj.nlc.net.au [203.24.133.1]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id VAA12967 for ; Fri, 21 Aug 1998 21:46:10 -0500 (CDT) Message-Id: <199808220246.VAA12967@tapr.org> Received: (qmail 18159 invoked from network); 22 Aug 1998 12:46:17 +1000 Received: from dialine36.nlc.net.au (HELO max) (203.24.133.85) by nhj.nlc.net.au with SMTP; 22 Aug 1998 12:46:17 +1000 From: "Eddie HANHAM" To: ss@tapr.org Date: Sat, 22 Aug 1998 12:41:23 +10 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Subject: Re: [SS:2014] Starting on N6GN's microwave project CC: Robb Greathouse Priority: normal In-reply-to: <35DD763A.6F9BF56@quiknet.com> Also interested in the microwave project, have done some research and the microwave side appears to be the easiest part. The hardest seems to be operating ethernet cards at 2Mb. Granted one can replace the 20Mhz crystal osc on the card with 4Mhz to bring down the bit rate, but is the tcp/ip software out there to run a link with possibly a lot of retransmissions, and how do "modern" ethernet cards perform at the lower clock rate?? For those interested there is a N6gn site at TAPR where: Glenn Elmores 1988 Ham Radio article at http://www.tapr.org/~n6gn/index.html and the "Tech Elmers" at http://www.geocities.com/SiliconValley/2775/ Would like to hear more about the software side! eddie VK2BEH > Date: Fri, 21 Aug 1998 08:39:30 -0500 (CDT) > Reply-to: ss@tapr.org > From: Robb Greathouse > To: ss@tapr.org > Subject: [SS:2014] Starting on N6GN's microwave project, looking for experience > With great trepidation I am about to start building the 2mbps microwave > link published by N6GN in Ham Radio magazine. Has anyone else tried to > build in and if so what was your experience? > > Robb GreatHouse > atlas@quiknet.com > > > _________________________________________________________ Eddie HANHAM Phone 61 2 93274118 20 HARRIS STREET Email eddiehan@nlc.net.au Paddington New South Wales AUSTRALIA 2021 __________________________________________________________ From atlas@quiknet.com Fri Aug 21 22:53:19 1998 Received: from mail.quiknet.com (mail.quiknet.com [207.183.249.4]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id WAA16440 for ; Fri, 21 Aug 1998 22:53:18 -0500 (CDT) Received: (qmail 28117 invoked from network); 22 Aug 1998 03:55:31 -0000 Received: from 212.241.2-1.rkln.pmpool.quiknet.com (HELO quiknet.com) (207.183.241.212) by mail.quiknet.com with SMTP; 22 Aug 1998 03:55:31 -0000 Message-ID: <35DE4057.B4F7EC5F@quiknet.com> Date: Fri, 21 Aug 1998 20:51:51 -0700 From: Robb Greathouse X-Mailer: Mozilla 4.05 [en] (Win95; U) MIME-Version: 1.0 To: ss@tapr.org Subject: Re: [SS:2016] Re: Starting on N6GN's microwave project, looking for experience References: <35DE23AF.AF0742C9@premier.net> Content-Type: multipart/alternative; boundary="------------A4FDBD6FE9FD67264F43898B" --------------A4FDBD6FE9FD67264F43898B Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Rhett Westerman wrote: > Robb, > > I missed this article but am interested in it. > > Which mag was this in? > > Thanks > > Robb Greathouse wrote: > > > > With great trepidation I am about to start building the 2mbps microwave > > link published by N6GN in Ham Radio magazine. Has anyone else tried to > > build in and if so what was your experience? > > > > Robb GreatHouse > > atlas@quiknet.com > > -- > > Rhett Westerman > rhettw@premier.net > http://www.premier.net/~rhettw/index.htm It's on the Web at http://www.tapr.org/~n6gn/index.html --------------A4FDBD6FE9FD67264F43898B Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit  

Rhett Westerman wrote:

Robb,

 I missed this article but am interested in it.

 Which mag was this in?

Thanks

Robb Greathouse wrote:
>
> With great trepidation I am about to start building the 2mbps microwave
> link published by N6GN in Ham Radio magazine.  Has anyone else tried to
> build in and if so what was your experience?
>
> Robb GreatHouse
> atlas@quiknet.com

--

Rhett Westerman
rhettw@premier.net
http://www.premier.net/~rhettw/index.htm

  It's on the Web at http://www.tapr.org/~n6gn/index.html

  --------------A4FDBD6FE9FD67264F43898B-- From fuchs_@evc.net Sat Aug 22 05:59:02 1998 Received: from factorix.sdv.fr (factorix.sdv.fr [194.206.196.2]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id FAA06476 for ; Sat, 22 Aug 1998 05:58:59 -0500 (CDT) Received: from evc.net (ipdyna1.evc.net [195.101.131.1]) by factorix.sdv.fr (8.8.4/8.8.4) with ESMTP id NAA12461 for ; Sat, 22 Aug 1998 13:04:21 +0200 Message-ID: <35DEA442.F486CDE@evc.net> Date: Sat, 22 Aug 1998 12:58:11 +0200 From: Philippe Fuchs X-Mailer: Mozilla 4.05 [fr] (Win95; I) MIME-Version: 1.0 To: ss@tapr.org Subject: Europeen SS ? Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit A few remarks since I'm reading these messages, and after browsing the n6gn web pages: The 900 Mhz band is always mentionned as the main SS band in the US. The problem is that in europe, this band is not allowed for ham operations. It is used by GSM cellular mobile phones, (all digital) modulated in GMSK with frequency hopping. Quite a complex protocol which requires encryption and DSP for baseband modulation. The network already starts saturating and a second band is beeing used, at about 1800MHz. This leaves europeen hams with the 230, 1200, 2400 and 10 000 MHz bands. I heard that some germans are doing digital hi-speed links on 10 GHz. In France, to my knowledge, very few people (hams) are experimenting microwave links. And less know about spread spectrum! I as wondering if other europeens are interrested in developping SS in europe or if they could give me more informations on things going on in this part of the world. Thank you. -- F8CND Philippe Fuchs fuchs@evc.net From doug@clecom.com Sat Aug 22 12:35:27 1998 Received: from grover.en.com (grover.en.com [204.89.181.10]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id MAA01499 for ; Sat, 22 Aug 1998 12:35:25 -0500 (CDT) Received: from Duncan (p23-clv2-ts3.en.net [207.180.218.151]) by grover.en.com (8.8.8/8.8.8) with SMTP id NAA18518 for ; Sat, 22 Aug 1998 13:35:07 -0400 (EDT) Message-Id: <3.0.32.19980822133537.00868220@en.com> X-Sender: dbade@en.com X-Mailer: Windows Eudora Pro Version 3.0 (32) Date: Sat, 22 Aug 1998 13:35:38 -0400 To: ss@tapr.org From: Doug Bade Subject: Re: [SS:2014] Starting on N6GN's microwave project, looking for experience Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" I am working on the same project, I have built the board set and am in debugging mode. some of the fets and other stuff are hard to find, I ordered extra's so email me when you are ready.... I also found several sources for parts after the fact.. FAR circuits had(s) boards, some foil errors and parts list error's... see n6gn's page at tapr for latest info... 73.. Doug. KB8GVQ At 08:35 AM 8/21/98 -0500, you wrote: >With great trepidation I am about to start building the 2mbps microwave >link published by N6GN in Ham Radio magazine. Has anyone else tried to >build in and if so what was your experience? > >Robb GreatHouse >atlas@quiknet.com > > > From ssampson@usa-site.net Sat Aug 22 14:17:23 1998 Received: from access.usa-site.net (access.usa-site.net [209.140.34.130]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id OAA05883 for ; Sat, 22 Aug 1998 14:17:21 -0500 (CDT) Received: (from ssampson@localhost) by access.usa-site.net (8.8.5/8.8.5) id OAA17733 for ss@tapr.org; Sat, 22 Aug 1998 14:17:23 -0500 From: Steve Sampson Message-Id: <199808221917.OAA17733@access.usa-site.net> Subject: Re: [SS:2020] Re: Starting on N6GN's microwave project, looking To: ss@tapr.org Date: Sat, 22 Aug 1998 14:17:23 -0500 (CDT) In-Reply-To: <3.0.32.19980822133537.00868220@en.com> from "Doug Bade" at Aug 22, 98 12:40:56 pm Content-Type: text On an aside, this isn't really SS, but the GPS based oscillators would probably be useful in future X and K band designs. Those Gunn based units have a lot of drift. Communications Quarterly had a nice article in their first issue which had one side track the drift. Alas, it was a voice only design, but interesting in the use of an FM Stereo radio as the IF and audio sections (high bandwidth--100 kHz). I thought it would be a good system for packet, but on the order of 56 kbps rather than the much harder 1 Mbps (harder in data pump and receiver design, etc). I don't know if they (CQ) are still being published, but the article is worth having. The Ham Radio article was also in the ARRL Handbook for a few years, and may even still be included. From graham.cheater@dial.pipex.com Mon Aug 24 14:36:56 1998 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 OAA04060 for ; Mon, 24 Aug 1998 14:36:54 -0500 (CDT) Received: (qmail 20582 invoked from network); 24 Aug 1998 19:36:51 -0000 Received: from usern922.uk.uudial.com (HELO dial.pipex.com) (193.149.86.193) by smtp.dial.pipex.com with SMTP; 24 Aug 1998 19:36:51 -0000 Message-ID: <35E1C0B2.BD2D8D4F@dial.pipex.com> Date: Mon, 24 Aug 1998 20:36:18 +0100 From: Graham Cheater Organization: Sembawang Services X-Mailer: Mozilla 4.04 [en] (Win95; I) MIME-Version: 1.0 To: ss@tapr.org Subject: Re: [SS:2020] Re: Starting on N6GN's microwave project References: <3.0.32.19980822133537.00868220@en.com> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit I am trying to get started with this project but find it almost impossible to get 'specified' or 'equivalent' part over here. Graham Cheater G4FUA ...---... graham.cheater@dial.pipex.com ------------------------------- Doug Bade wrote: > I am working on the same project, I have built the board set and am in > debugging mode. some of the fets and other stuff are hard to find, I > ordered extra's so email me when you are ready....etc. > > At 08:35 AM 8/21/98 -0500, you wrote: > >With great trepidation I am about to start building the 2mbps microwave > >link published by N6GN in Ham Radio magazine. Has anyone else tried to > >build in and if so what was your experience? > > > >Robb GreatHouse > >atlas@quiknet.com > > > > > > From ge@sr.hp.com Mon Aug 24 15:34:20 1998 Received: from palrel5.hp.com (palrel5.hp.com [156.153.255.146]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id PAA07397 for ; Mon, 24 Aug 1998 15:34:19 -0500 (CDT) Received: from srmail.sr.hp.com (srmail.sr.hp.com [15.4.45.14]) by palrel5.hp.com (8.8.6 (PHNE_14041)/8.8.5tis) with ESMTP id NAA13925 for ; Mon, 24 Aug 1998 13:35:28 -0700 (PDT) Received: from n6gn.sr.hp.com by srmail.sr.hp.com with ESMTP (1.37.109.16/15.5+ECS 3.3) id AA106220857; Mon, 24 Aug 1998 13:34:17 -0700 Received: (from ge@localhost) by n6gn.sr.hp.com (8.7.6/8.7.3 TIS 5.0) id NAA22641 for ss@tapr.org; Mon, 24 Aug 1998 13:34:16 -0700 (PDT) Message-Id: <199808242034.NAA22641@n6gn.sr.hp.com> Subject: Re: Starting on N6GN's microwave project In-Reply-To: <199808241946.OAA04436@tapr.org> from "ss@tapr.org" at "Aug 24, 1998 2:46:40 pm" To: ss@tapr.org Date: Mon, 24 Aug 1998 13:34:16 -0700 (PDT) From: Glenn Elmore X-Mailer: ELM [version 2.4ME+ PL43 (25)] Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit > To: ss@tapr.org > Subject: Re: Starting on N6GN's microwave project > > I am trying to get started with this project but find it almost impossible to get > 'specified' or 'equivalent' part over here. > > Graham Cheater G4FUA ...---... > graham.cheater@dial.pipex.com What parts do you need? Glenn n6gn From melus@bart.us.es Thu Aug 27 15:08:35 1998 Received: from bart.us.es (bart.us.es [193.147.160.132]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id PAA06025 for ; Thu, 27 Aug 1998 15:08:32 -0500 (CDT) Received: from polar.eb7gwl.ampr.org (id-125.arrakis.es [195.5.73.125]) by bart.us.es (8.8.8/8.8.8) with SMTP id WAA11532 for ; Thu, 27 Aug 1998 22:08:23 +0200 (MET DST) Message-ID: <35E43328.5A40@esi.us.es> Date: Wed, 26 Aug 1998 19:09:12 +0200 From: Luis Yanes Reply-To: melus@bart.us.es Organization: Escuela Superior de Ingenieros de Sevilla X-Mailer: Mozilla 3.04Gold (Win95; I) MIME-Version: 1.0 To: ss@tapr.org Subject: Re: [SS:2017] Re: Starting on N6GN's microwave project References: <199808220246.VAA12967@tapr.org> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Eddie HANHAM wrote: > > Also interested in the microwave project, have done some research > and the microwave side appears to be the easiest part. The hardest > seems to be operating ethernet cards at 2Mb. Granted one can replace > the 20Mhz crystal osc on the card with 4Mhz to bring down the > bit rate, but is the tcp/ip software out there to run a link with > possibly a lot of retransmissions, and how do "modern" ethernet cards > perform at the lower clock rate?? Althought this isn't SS, may be interesting. Some time ago, whe I purchased mu 1993 ARRL handbook, I began to built the n6gn link, and one of the first things I tried was to attempt to get the 2Mbps from a couple of old clone ethernet cards I've arround... but without luck. After this I got some other NE2000 clone ethernet cards with National DP83906VL NIC, (former Unicorn, now changed their name) UM9096 and YCL 20F001N 10BaseT pulse transformer. The connector I was using was 10BaseT, since with the 10Base2 BNC I can't work below 7Mbps. (with DP8392). Changing the 20MHz xtal with a 6MHz one I got a 'reliable' link with twisted pair cable testing. Triing to use a 4MHz don't worked, so I can't get 2MBps. I only got 3MBps minimun. This can be related to the digital RX clock extraction from the manchester encoded signal, that probably in the DP83906 will be dependant of some delay or filter. Since in the DP8390 data sheet isn't enought detailed, and of course the operation is only specified at 10MBps, I can't figure if there is some way to solve this. I don't know how reliable this 3MBps will be when on a radio channel, but with a small run of UTP of about 20m there isn't any error when using the link test program of the boards. After this I inserted an attenuator in the TX pair, and increassing attenuation I got aproximately the same results with 3MBps that with 10MBps, so I guess that with a good s/n will work. Also I added a couple of 100nF capacitors in paralell with the ones that inputs the encoded signal to the UM9096, that may be small to work at 3MBps, but the performance found was the same. > For those interested there is a N6gn site at TAPR where: > Glenn Elmores 1988 Ham Radio article at > http://www.tapr.org/~n6gn/index.html and > the "Tech Elmers" at > http://www.geocities.com/SiliconValley/2775/ > > Would like to hear more about the software side! I think that since the software driver allows some delays, here isn't any problem. I was using windows between the two computers transferring files, and accessing each other resources without problem with the 3MBps, but even slower that at 10MBps, of course. The main concern, apart of the 3MBps instead 2MBps, is that the maximun allowable delay is arround 584 bits (I don't remember exactly where I read about this ethernet specifications), and limit the maximun range of the link. At 10MBps will be about 10Km, and 80Km with 2MBps, (including path delay and TRX internal delay ~25us. 3E8m/s*100E-9s/bit=30m/bit and then 30m/bit*584bit=17520m) On the other hand, if this limitation is related to the NIC driver then the range could be the same for both, and since there is C source available arround, may be easy to cope with this. Anyway, multipath can cause severe trouble with DX. And If packet identification is a concern to you, then you can burn your callsign in the ethernet address in the e2prom to use it on the air, so every packet will carry your id, like AX25. P.D.: I didn't finished the n6gn board becouse I can't found some parts, and don't want to substitute with others before it worked to avoid a headache. I'm alone in town to help me with the link, so I haven't tried it. I'm sorry to have written a so long message. May be not interesting enought to post here. -- 73's de Luis mail: melus@esi.us.es Ampr: eb7gwl.ampr.org [44.133.41.18] AX25: (sorry shut down) http://www.esi.us.es/~melus/ From elsy@elsy.it Fri Aug 28 07:31:44 1998 Received: from ns.savigliano.alpcom.it (ns.savigliano.alpcom.it [194.116.21.32]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id HAA05698 for ; Fri, 28 Aug 1998 07:31:40 -0500 (CDT) Received: from UNO.alpcom.it ([194.116.32.23]) by ns.savigliano.alpcom.it (8.8.8/8.7.3) with SMTP id OAA05494 for ; Fri, 28 Aug 1998 14:39:42 +0200 (MET DST) Date: Fri, 28 Aug 1998 14:39:42 +0200 (MET DST) Message-Id: <199808281239.OAA05494@ns.savigliano.alpcom.it> X-Sender: elsy@isiline.it X-Mailer: Windows Eudora Light Version 1.5.2 Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" To: ss@tapr.org From: elsy Subject: SS digest 510 >---------------------------------------------------------------------- >> >> For those interested there is a N6gn site at TAPR where: >> Glenn Elmores 1988 Ham Radio article at >> http://www.tapr.org/~n6gn/index.html and >> the "Tech Elmers" at >> http://www.geocities.com/SiliconValley/2775/ >> >> Would like to hear more about the software side! > >--------------------------------------------------------------------------- ------- I am interested to buy all parts of N6gn project assembled and tested..... Where is it possible to try for it ??????? Best regards Renato Bertello Renato - I1BEP via principi, 41 12042 BRA tel 0172 432038 http://www.elsy.it mail: elsy@elsy.it From kd4dla@amsat.org Mon Aug 31 15:19:23 1998 Received: from megsinet.net (mail.megsinet.net [208.133.72.77]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id PAA02482 for ; Mon, 31 Aug 1998 15:19:21 -0500 (CDT) Received: from default(max2-26.detroit.megsinet.net[209.81.182.154]) (774 bytes) by megsinet.net via sendmail with P:smtp/R:inet_hosts/T:smtp (sender: ) id for ; Mon, 31 Aug 1998 15:19:01 -0500 (CDT) (Smail-3.2.0.101 1997-Dec-17 #12 built 1998-Feb-6) Message-ID: <35EB053B.5839@amsat.org> Date: Mon, 31 Aug 1998 16:19:07 -0400 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: Re: [SS:2024] Re: Starting on N6GN's microwave project References: <35E43328.5A40@esi.us.es> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Looking at the N6GN project and can't locate these parts: MC13055 FSK RECEIVER IC SRA-1 MIXER MC10116 LINE RECEIVER IC Can anyone help out locating these parts and how much they cost? James KD4DLA From doug@clecom.com Mon Aug 31 15:54:08 1998 Received: from grover.en.com (grover.en.com [204.89.181.10]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id PAA04332 for ; Mon, 31 Aug 1998 15:54:07 -0500 (CDT) Received: from shop.clecom.com (p11-clv-ts7.en.net [207.180.219.203]) by grover.en.com (8.8.8/8.8.8) with SMTP id QAA03116 for ; Mon, 31 Aug 1998 16:53:35 -0400 (EDT) Message-Id: <3.0.32.19980831165107.006947cc@wingate> X-Sender: dbade#en.com@wingate X-Mailer: Windows Eudora Pro Version 3.0 (32) Date: Mon, 31 Aug 1998 16:51:09 -0400 To: ss@tapr.org From: Doug Bade Subject: Re: [SS:2026] Re: Starting on N6GN's microwave project Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" >Date: Mon, 31 Aug 1998 16:49:45 -0400 >To: kd4dla@amsat.org >From: Doug Bade >Subject: Re: [SS:2026] Re: Starting on N6GN's microwave project > >Hello James; > >check at www.shfmicro.com. He lists alot of good stuff including these parts > >At 03:25 PM 8/31/98 -0500, you wrote: >>Looking at the N6GN project and can't locate these parts: >> >>MC13055 FSK RECEIVER IC >>SRA-1 MIXER >>MC10116 LINE RECEIVER IC >> >>Can anyone help out locating these parts and how much they cost? >> >>James KD4DLA >> >> >> From ge@sr.hp.com Mon Aug 31 16:11:18 1998 Received: from palrel3.hp.com (palrel3.hp.com [156.153.255.226]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id QAA05535 for ; Mon, 31 Aug 1998 16:11:16 -0500 (CDT) Received: from srmail.sr.hp.com (srmail.sr.hp.com [15.4.45.14]) by palrel3.hp.com (8.8.6 (PHNE_14041)/8.8.5tis) with ESMTP id OAA07446; Mon, 31 Aug 1998 14:12:17 -0700 (PDT) Received: from n6gn.sr.hp.com by srmail.sr.hp.com with ESMTP (1.37.109.16/15.5+ECS 3.3) id AA265437874; Mon, 31 Aug 1998 14:11:14 -0700 Received: (from ge@localhost) by n6gn.sr.hp.com (8.7.6/8.7.3 TIS 5.0) id OAA18000; Mon, 31 Aug 1998 14:11:13 -0700 (PDT) Message-Id: <199808312111.OAA18000@n6gn.sr.hp.com> Subject: Starting on N6GN's microwave project In-Reply-To: <199808312032.PAA03064@tapr.org> from "ss@tapr.org" at "Aug 31, 1998 3:32:52 pm" To: ss@tapr.org Date: Mon, 31 Aug 1998 14:11:13 -0700 (PDT) From: Glenn Elmore Cc: kd4dla@amsat.org X-Mailer: ELM [version 2.4ME+ PL43 (25)] Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit From: James Clay French KD4DLA > > Looking at the N6GN project and can't locate these parts: > > MC13055 FSK RECEIVER IC > SRA-1 MIXER > MC10116 LINE RECEIVER IC > > Can anyone help out locating these parts and how much they cost? > Unless he is out of stock you can obtain all the above from SHF Microwave Parts at http://www.shfmicro.com/d&t.htm There's also still a link to it from my pages. Glenn Elmore n6gn IP by radio: glenn@SantaRosa.ampr.org by wire: ge@sr.hp.com n6gn@sonic.net |--------- N6GN's Higher Speed Packet WWW Page ---------| | | | http://www.tapr.org/~n6gn/index.html | | http://www.sonic.net/~n6gn | | | |-------------------------------------------------------|