From bounce-ss-6751@lists.tapr.org Sat Dec 1 00:38:45 2001 Received: from lists.tapr.org (lists.tapr.org [204.17.217.24]) by tapr.org (8.9.3/8.9.3/1.13) with SMTP id AAA03929 for ; Sat, 1 Dec 2001 00:38:36 -0600 (CST) From: "Darryl Smith" To: "TAPR Spread Spectrum Special Interest Group" Subject: [ss] Laser or Spread Specrum Date: Sat, 1 Dec 2001 17:33:54 +1100 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Importance: Normal In-Reply-To: List-Unsubscribe: List-Software: Lyris Server version 3.0 List-Subscribe: List-Owner: X-List-Host: Tucson Amateur Packet Radio Reply-To: "TAPR Spread Spectrum Special Interest Group" X-Message-Id: <001101c17a32$26682f00$4601a8c0@radioactive.net.au> Sender: bounce-ss-6751@lists.tapr.org Precedence: bulk G'Day A good indicator as to if LASER will work, is are there times that you could not see a torch at the other loction when using a telescope? And then can you see a TV remote control if using an Infra Red camera. Most bad weather will mean that you cannot see them. 802.11 is probably the way to go. Do a search on the net for free wireless networks. Also have a look at nocat.net . The reason for NOCAT... Einstein said that wireless is like pulling a cats tail and hearing it scream, without the cat :-) Telegraph is a cat with a 100 mile tail... Darryl --------- Darryl Smith, VK2TDS POBox 169 Ingleburn NSW 2565 Australia Mobile Number 0412 929 634 [+61 4 12 929 634 International] Darryl@radio-active.net.au | www.radio-active.net.au for domain names --- You are currently subscribed to ss as: lyris.ss@tapr.org To unsubscribe send a blank email to leave-ss-6751T@lists.tapr.org From bounce-ss-6751@lists.tapr.org Sat Dec 1 01:36:26 2001 Received: from lists.tapr.org (lists.tapr.org [204.17.217.24]) by tapr.org (8.9.3/8.9.3/1.13) with SMTP id BAA05017 for ; Sat, 1 Dec 2001 01:36:20 -0600 (CST) Errors-To: Message-ID: Date: Sat, 01 Dec 2001 02:33:12 -0500 From: Jeff King Organization: Aero Data Systems, Inc. User-Agent: Mozilla/5.0 (Windows; U; Win 9x 4.90; en-US; rv:0.9.2) Gecko/20010726 Netscape6/6.1 X-Accept-Language: en-us MIME-Version: 1.0 To: "TAPR Spread Spectrum Special Interest Group" Subject: [ss] Re: Laser or Spread Specrum References: Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit List-Unsubscribe: List-Software: Lyris Server version 3.0 List-Subscribe: List-Owner: X-List-Host: Tucson Amateur Packet Radio Reply-To: "TAPR Spread Spectrum Special Interest Group" X-Message-Id: <3C0887B8.6060303@aerodata.net> Sender: bounce-ss-6751@lists.tapr.org Precedence: bulk Jeff King wrote: > Just about any 802.11b card with a modest gain antenna should work here. > Some > of them even claim 1500 feet (~<500meters) out of the box with stock > antennas, > so with some gain antennas it should be rock solid. As a follow-up, here are some interesting articles on doing 802.11b links: http://www.pbs.org/cringely/pulpit/pulpit20010628.html http://www.pbs.org/cringely/pulpit/pulpit20010712.html -Jeff wb8wka |-------------------------------------------------------------------------| | Jeff King 248-471-1787 F 248-471-0279 e-mail: jeff@aerodata.net | | | | "They that give up essential liberty to obtain a little temporary safety| | deserve neither liberty nor safety." -- Benjamin Franklin, 1759 | |-------------------------------------------------------------------------| --- You are currently subscribed to ss as: lyris.ss@tapr.org To unsubscribe send a blank email to leave-ss-6751T@lists.tapr.org From bounce-message-6751@lists.tapr.org Wed Dec 5 17:38:52 2001 Received: from lists.tapr.org (lists.tapr.org [204.17.217.24]) by tapr.org (8.9.3/8.9.3/1.13) with SMTP id RAA11894 for ; Wed, 5 Dec 2001 17:38:52 -0600 (CST) Message-Id: X-Lyris-Type: unsub-conf-req From: Lyris Reply-To: Lyris To: lyris.ss@tapr.org Subject: Your confirmation is needed (ok 6751) Date: Wed, 05 Dec 2001 18:06:44 -0600 Your email address 'lyris.ss@tapr.org' has been submitted to be unsubscribed from the 'ss' mailing list. This unsubscribe command requires your confirmation that you want to be unsubscribed. To confirm that you do want to unsubscribe, reply to this message so that the words "ok 6751" appear somewhere on the subject line. Make sure that your reply message is addressed to unsubscribe-confirm@lists.tapr.org You will receive notification that your confirmation has been received, and that you have been unsubscribed. If you do not want to unsubscribe, do nothing. You will be kept on the mailing list. --- Return-Path: Received: from ns.snd.edu.gr ([194.219.139.3]) by lists.tapr.org with SMTP (Lyris Server version 3.0); Wed, 05 Dec 2001 18:06:38 -0600 Received: from wseas.org (whoknows.snd.edu.gr [194.219.139.198] (may be forged)) by ns.snd.edu.gr (8.8.8/SCO5) with SMTP id BAA20302 for ; Thu, 6 Dec 2001 01:31:13 +0200 (HELLAS) Message-Id: <200112052331.BAA20302@ns.snd.edu.gr> From: "WSEAS NEWSLETTER" To: ss-request Sender: "WSEAS NEWSLETTER" Mime-Version: 1.0 Content-Type: text/plain; charset="ISO-8859-1" Date: Thu, 6 Dec 2001 01:23:42 +0200 X-Priority: 1 (Highest) Content-Transfer-Encoding: 8bit subject: # Mail sent to leave-ss-6751t was converted to these commands: unsubscribe ss lyris.ss@tapr.org confirm end # This is the text of the message that triggered the action: Return-Path: Received: from ns.snd.edu.gr ([194.219.139.3]) by lists.tapr.org with SMTP (Lyris Server version 3.0); Wed, 05 Dec 2001 18:06:38 -0600 Received: from wseas.org (whoknows.snd.edu.gr [194.219.139.198] (may be forged)) by ns.snd.edu.gr (8.8.8/SCO5) with SMTP id BAA20302 for ; Thu, 6 Dec 2001 01:31:13 +0200 (HELLAS) Message-Id: <200112052331.BAA20302@ns.snd.edu.gr> From: "WSEAS NEWSLETTER" To: Sender: "WSEAS NEWSLETTER" Mime-Version: 1.0 Content-Type: text/plain; charset="ISO-8859-1" Date: Thu, 6 Dec 2001 01:23:42 +0200 X-Priority: 1 (Highest) Content-Transfer-Encoding: 8bit Dear WSEAS Newsletters Recipients, For you (and for all WSEAS members), we PROLONG the deadline for paper submission for: 3rd WSEAS Int.Conf. on NEURAL NETWORKS AND APPLICATIONS 3rd WSEAS Int.Conf. on FUZZY SETS AND FUZZY SYSTEMS 3rd WSEAS Int.Conf. on EVOLUTIONARY COMPUTATION (Interlaken, Switzerland, Febr.11-14, 2002) UNTIL: DECEMBER 15, 2001. We also prolonged the deadline for early registration. Also, we remind that the deadline for 2nd WSEAS Int.C.on MEASUREMENT, CONTROL, CIRCUITS AND SYSTEMS 2nd WSEAS Int.C.on INFORMATION SCIENCE AND APPLICATIONS 2nd WSEAS Int.C.on SOFT COMPUTING, OPTIMIZATION, SIMULATION AND MANUFACTURING SYSTEMS 4th WSEAS Int.C.on MATHEMATICS AND COMPUTERS IN PHYSICS 4th WSEAS Int.C.on MECHANICAL ENGINEERING MULTICONFERENCE (Cancun, Mexico, May 12-16, 2002) expires on DECEM.20, 2001 All the papers will be published in the Proceedings and in the Luxurious post-conf. books as well as a great number of them in: WSEAS Transactions on Circuits, WSEAS Transactions on Systems, WSEAS Transactions on Computers, WSEAS Transactions on Mathematics and WSEAS Transactions on Communications More details: www.wseas.org/Calendar.htm Prof. K.Papanikolaou ------------------- How to unsubscribe: www.wseas.org From bounce-ss-6751@lists.tapr.org Sun Dec 23 03:46:47 2001 Received: from lists.tapr.org (lists.tapr.org [204.17.217.24]) by tapr.org (8.9.3/8.9.3/1.13) with SMTP id DAA15888 for ; Sun, 23 Dec 2001 03:46:44 -0600 (CST) From: "Darryl Smith" To: "TAPR Spread Spectrum Special Interest Group" Subject: [ss] Help wanted for a maths question... Date: Sun, 23 Dec 2001 20:40:39 +1100 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Importance: Normal List-Unsubscribe: List-Software: Lyris Server version 3.0 List-Subscribe: List-Owner: X-List-Host: Tucson Amateur Packet Radio Reply-To: "TAPR Spread Spectrum Special Interest Group" X-Message-Id: <000001c18b95$e5187da0$4004a8c0@LAPTOP> Sender: bounce-ss-6751@lists.tapr.org Precedence: bulk G'Day This is a bit off topic, but I am attempting to decode a protocol, and I am not getting anywhere on decoding the checksum. I have been able to decode just about everything except for the checksum. I do not know of any software that can help me with this... I am hoping someone will have some idea about some software or will look at the data and just know :-) I have a lot more data to go with this. I have worked out the last column is a checksum. 04 01 01 04 AA F0 04 01 01 05 71 2A 04 01 01 06 38 60 04 01 01 09 54 03 04 01 01 0A 1B 4F 04 01 01 0A E2 B6 04 01 01 0B A9 FC 04 01 01 0D 37 64 04 01 01 0D FE AD 04 01 01 0F 8C DD 05 00 17 80 00 c8 05 00 17 20 00 68 I would appreciate any help anyone could give. Darryl --------- Darryl Smith, VK2TDS POBox 169 Ingleburn NSW 2565 Australia Mobile Number 0412 929 634 [+61 4 12 929 634 International] Darryl@radio-active.net.au | www.radio-active.net.au for domain names --- You are currently subscribed to ss as: lyris.ss@tapr.org To unsubscribe send a blank email to leave-ss-6751T@lists.tapr.org From bounce-ss-6751@lists.tapr.org Sun Dec 23 08:12:35 2001 Received: from lists.tapr.org (lists.tapr.org [204.17.217.24]) by tapr.org (8.9.3/8.9.3/1.13) with SMTP id IAA23716 for ; Sun, 23 Dec 2001 08:12:29 -0600 (CST) Message-ID: From: "jeff millar" To: "TAPR Spread Spectrum Special Interest Group" References: Subject: [ss] Re: Help wanted for a maths question... Date: Sun, 23 Dec 2001 09:08:24 -0500 MIME-Version: 1.0 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4522.1200 List-Unsubscribe: List-Software: Lyris Server version 3.0 List-Subscribe: List-Owner: X-List-Host: Tucson Amateur Packet Radio Reply-To: "TAPR Spread Spectrum Special Interest Group" X-Message-Id: <002601c18bbb$4a6bab80$6501a8c0@home> Sender: bounce-ss-6751@lists.tapr.org Precedence: bulk a little context please... jeff, wa1hco ----- Original Message ----- From: "Darryl Smith" To: "TAPR Spread Spectrum Special Interest Group" Sent: Sunday, December 23, 2001 4:40 AM Subject: [ss] Help wanted for a maths question... > G'Day > > This is a bit off topic, but I am attempting to decode a protocol, and I > am not getting anywhere on decoding the checksum. I have been able to > decode just about everything except for the checksum. I do not know of > any software that can help me with this... I am hoping someone will have > some idea about some software or will look at the data and just know :-) > I have a lot more data to go with this. > > I have worked out the last column is a checksum. > > 04 01 01 04 AA F0 > 04 01 01 05 71 2A > 04 01 01 06 38 60 > 04 01 01 09 54 03 > 04 01 01 0A 1B 4F > 04 01 01 0A E2 B6 > 04 01 01 0B A9 FC > 04 01 01 0D 37 64 > 04 01 01 0D FE AD > 04 01 01 0F 8C DD > 05 00 17 80 00 c8 > 05 00 17 20 00 68 > > I would appreciate any help anyone could give. > > Darryl > > --------- > Darryl Smith, VK2TDS POBox 169 Ingleburn NSW 2565 Australia > Mobile Number 0412 929 634 [+61 4 12 929 634 International] > Darryl@radio-active.net.au | www.radio-active.net.au for domain names > > > > --- > You are currently subscribed to ss as: JEFF@WA1HCO.MV.COM > To unsubscribe send a blank email to leave-ss-6751T@lists.tapr.org > > --- You are currently subscribed to ss as: lyris.ss@tapr.org To unsubscribe send a blank email to leave-ss-6751T@lists.tapr.org From bounce-ss-6751@lists.tapr.org Sun Dec 23 23:56:02 2001 Received: from lists.tapr.org (lists.tapr.org [204.17.217.24]) by tapr.org (8.9.3/8.9.3/1.13) with SMTP id XAA11338 for ; Sun, 23 Dec 2001 23:56:00 -0600 (CST) From: "Darryl Smith" To: "TAPR Spread Spectrum Special Interest Group" Subject: [ss] RE: Help wanted for a maths question... Date: Mon, 24 Dec 2001 16:50:18 +1100 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 In-Reply-To: List-Unsubscribe: List-Software: Lyris Server version 3.0 List-Subscribe: List-Owner: X-List-Host: Tucson Amateur Packet Radio Reply-To: "TAPR Spread Spectrum Special Interest Group" X-Message-Id: <000a01c18c3e$e13bfaf0$4004a8c0@LAPTOP> Sender: bounce-ss-6751@lists.tapr.org Precedence: bulk G'Day > From: "jeff millar" > a little context please... > > jeff, wa1hco The data comes from an RS-232 stream between a sony video camera and an RS-232 controller. The RS-232 was running on inverted polarity, and when you do things on the controller the camera does this and responds. I would guess that the checksum is some type of cyclic code, but I cannot work it out. I would imagine that someone has software to work out checksum codes, but I do not even know where to look. Many thanks Darryl --------- Darryl Smith, VK2TDS POBox 169 Ingleburn NSW 2565 Australia Mobile Number 0412 929 634 [+61 4 12 929 634 International] Darryl@radio-active.net.au | www.radio-active.net.au for domain names --- You are currently subscribed to ss as: lyris.ss@tapr.org To unsubscribe send a blank email to leave-ss-6751T@lists.tapr.org From bounce-ss-6751@lists.tapr.org Mon Dec 24 10:14:15 2001 Received: from lists.tapr.org (lists.tapr.org [204.17.217.24]) by tapr.org (8.9.3/8.9.3/1.13) with SMTP id KAA20014 for ; Mon, 24 Dec 2001 10:14:14 -0600 (CST) Date: Mon, 24 Dec 2001 10:12:27 Subject: [ss] SS IMPLEMENTATION To: "TAPR Spread Spectrum Special Interest Group" From: "JAIRO ROBERTO BASTIDAS E" List-Unsubscribe: List-Software: Lyris Server version 3.0 List-Subscribe: List-Owner: X-List-Host: Tucson Amateur Packet Radio Reply-To: "TAPR Spread Spectrum Special Interest Group" Sender: bounce-ss-6751@lists.tapr.org Message-Id: Precedence: bulk GOOD DAY, I'M INTERESTED IN KNOWING HOW TO DO THE SS IMPLEMENTATION AND HOW TO CHOOSE THE WORK FREQUENCY. THANK YOU FOR YOUR TIME AND HELP. --- You are currently subscribed to ss as: lyris.ss@tapr.org To unsubscribe send a blank email to leave-ss-6751T@lists.tapr.org From bounce-ss-6751@lists.tapr.org Tue Dec 25 10:02:44 2001 Received: from lists.tapr.org (lists.tapr.org [204.17.217.24]) by tapr.org (8.9.3/8.9.3/1.13) with SMTP id KAA26255 for ; Tue, 25 Dec 2001 10:02:43 -0600 (CST) Date: Tue, 25 Dec 2001 10:2:10 Subject: [ss] RE: Help wanted for a maths question To: "TAPR Spread Spectrum Special Interest Group" From: "Doug Gibbs" List-Unsubscribe: List-Software: Lyris Server version 3.0 List-Subscribe: List-Owner: X-List-Host: Tucson Amateur Packet Radio Reply-To: "TAPR Spread Spectrum Special Interest Group" Sender: bounce-ss-6751@lists.tapr.org Message-Id: Precedence: bulk Darryl, You may want to investigate the Sony S-Link and/or Control A1 serial encoding formats. You can find detailed descriptions of these formats by searching the Internet for them. Regards, Doug Gibbs W8NFT Original Message: Subject: RE: Help wanted for a maths question... From: "Darryl Smith" Date: Mon, 24 Dec 2001 16:50:18 +1100 X-Message-Number: 1 G'Day > From: "jeff millar" > a little context please... > > jeff, wa1hco The data comes from an RS-232 stream between a sony video camera and an RS-232 controller. The RS-232 was running on inverted polarity, and when you do things on the controller the camera does this and responds. I would guess that the checksum is some type of cyclic code, but I cannot work it out. I would imagine that someone has software to work out checksum codes, but I do not even know where to look. Many thanks Darryl --------- Darryl Smith, VK2TDS POBox 169 Ingleburn NSW 2565 Australia Mobile Number 0412 929 634 [+61 4 12 929 634 International] Darryl@radio-active.net.au | www.radio-active.net.au for domain names --- You are currently subscribed to ss as: lyris.ss@tapr.org To unsubscribe send a blank email to leave-ss-6751T@lists.tapr.org From bounce-ss-6751@lists.tapr.org Fri Dec 28 14:40:51 2001 Received: from lists.tapr.org (lists.tapr.org [204.17.217.24]) by tapr.org (8.9.3/8.9.3/1.13) with SMTP id OAA21050 for ; Fri, 28 Dec 2001 14:40:50 -0600 (CST) Date: Fri, 28 Dec 2001 14:39:18 -0600 Message-Id: X-Sender: kb9mwr@yahoo.com (Unverified) Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" To: "TAPR Spread Spectrum Special Interest Group" From: Steve Lampereur Subject: [ss] 900 MHz FHSS Radio Cc: netsig@lists.tapr.org List-Unsubscribe: List-Software: Lyris Server version 3.0 List-Subscribe: List-Owner: X-List-Host: Tucson Amateur Packet Radio Reply-To: "TAPR Spread Spectrum Special Interest Group" X-Message-Id: <200112282039.fBSKdIU28802@faulkner.netnet.net> Sender: bounce-ss-6751@lists.tapr.org Precedence: bulk From: http://www.tapr.org/tapr/html/taprfhss.html >October 1999 >TAPR has signed an agreement with the Dandin Group to take the TAPR >design from its current state into production which TAPR has access to >production for sale back into the amateur radio community. Here it sits: http://www.dandin.com/tdr900.html > >The TDR-900 is being developed for both commercial and amateur radio >deployment. Dandin will be handling the commercial interests in the >radio, with TAPR handling the amateur radio service. > >The system has been designed so that the digital and RF board are >separate units. Additional bands for the radio are in development. > >More information on technology availability and licensing will be >available once the technology transfer between TAPR and Dandin is >complete. --- You are currently subscribed to ss as: lyris.ss@tapr.org To unsubscribe send a blank email to leave-ss-6751T@lists.tapr.org From bounce-ss-6751@lists.tapr.org Fri Dec 28 16:14:23 2001 Received: from lists.tapr.org (lists.tapr.org [204.17.217.24]) by tapr.org (8.9.3/8.9.3/1.13) with SMTP id QAA29197 for ; Fri, 28 Dec 2001 16:14:22 -0600 (CST) Date: Fri, 28 Dec 2001 17:13:22 -0500 (EST) From: Ryan Wilkins To: "TAPR Spread Spectrum Special Interest Group" Subject: [ss] Re: 900 MHz FHSS Radio In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII List-Unsubscribe: List-Software: Lyris Server version 3.0 List-Subscribe: List-Owner: X-List-Host: Tucson Amateur Packet Radio Reply-To: "TAPR Spread Spectrum Special Interest Group" X-Message-Id: Sender: bounce-ss-6751@lists.tapr.org Precedence: bulk So does this mean it's actually moving forward? Or is this just old news? Ryan (N8YHV) On Fri, 28 Dec 2001, Steve Lampereur wrote: > Here it sits: > http://www.dandin.com/tdr900.html --- You are currently subscribed to ss as: lyris.ss@tapr.org To unsubscribe send a blank email to leave-ss-6751T@lists.tapr.org From bounce-ss-6751@lists.tapr.org Fri Dec 28 22:11:55 2001 Received: from lists.tapr.org (lists.tapr.org [204.17.217.24]) by tapr.org (8.9.3/8.9.3/1.13) with SMTP id WAA18708 for ; Fri, 28 Dec 2001 22:11:50 -0600 (CST) Sender: bounce-ss-6751@lists.tapr.org Message-ID: Date: Fri, 28 Dec 2001 23:13:22 -0600 From: JL X-Accept-Language: en MIME-Version: 1.0 To: "TAPR Spread Spectrum Special Interest Group" Subject: [ss] 900 MHz DSSSS Idea Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit List-Unsubscribe: List-Software: Lyris Server version 3.0 List-Subscribe: List-Owner: X-List-Host: Tucson Amateur Packet Radio Reply-To: "TAPR Spread Spectrum Special Interest Group" X-Message-Id: <3C2D50F2.6E796475@gbonline.com> Precedence: bulk > From: http://www.tapr.org/tapr/html/taprfhss.html > >October 1999 > >TAPR has signed an agreement with the Dandin Group to take the TAPR > >design from its current state into production which TAPR has access to > >production for sale back into the amateur radio community. > > Here it sits: > http://www.dandin.com/tdr900.html Homebrew 2.4 GHz to 916 MHz transverter for 802.11b wireless LAN devices: http://www.qsl.net/n9zia/2400-to-900.html Looks more promising... --- You are currently subscribed to ss as: lyris.ss@tapr.org To unsubscribe send a blank email to leave-ss-6751T@lists.tapr.org From bounce-ss-6751@lists.tapr.org Sat Dec 29 01:20:42 2001 Received: from lists.tapr.org (lists.tapr.org [204.17.217.24]) by tapr.org (8.9.3/8.9.3/1.13) with SMTP id BAA03203 for ; Sat, 29 Dec 2001 01:20:41 -0600 (CST) From: tlang@freeway.apana.org.au (Tony Langdon) Date: 29 Dec 01 17:42:42 +1000 Subject: [ss] Re: 900 MHz DSSSS Idea Message-ID: References: Organization: Fidonet: Freeway Usenet <=> FTN gateway To: "TAPR Spread Spectrum Special Interest Group" X-MDaemon-Deliver-To: ss@lists.tapr.org List-Unsubscribe: List-Software: Lyris Server version 3.0 List-Subscribe: List-Owner: X-List-Host: Tucson Amateur Packet Radio Reply-To: "TAPR Spread Spectrum Special Interest Group" X-Message-Id: <828_0112291818@freeway.apana.org.au> Sender: bounce-ss-6751@lists.tapr.org Precedence: bulk Hello JL! 28 Dec 01 23:13, you wrote to TAPR Spread Spectrum Special Interest Group: J> Homebrew 2.4 GHz to 916 MHz transverter for 802.11b wireless LAN J> devices: J> J> http://www.qsl.net/n9zia/2400-to-900.html Hmm, nice idea, would like to have it on another band though, like 1200 MHz (we don't have 900 MHz here :( ). Tony, VK3JED .. @C:\BWAVE\TAGLINES.BW -- |Fidonet: Tony Langdon 3:633/284.18 |Internet: tlang@freeway.apana.org.au | | Standard disclaimer: The views of this user are strictly his own. --- You are currently subscribed to ss as: lyris.ss@tapr.org To unsubscribe send a blank email to leave-ss-6751T@lists.tapr.org From bounce-ss-6751@lists.tapr.org Sat Dec 29 15:45:08 2001 Received: from lists.tapr.org (lists.tapr.org [204.17.217.24]) by tapr.org (8.9.3/8.9.3/1.13) with SMTP id PAA20386 for ; Sat, 29 Dec 2001 15:45:04 -0600 (CST) X-Authentication-Warning: kb9mwr.ampr.org: kb9mwr owned process doing -bs Date: Sat, 29 Dec 2001 15:44:47 -0600 (CST) From: Steve Lampereur X-Sender: kb9mwr@kb9mwr.ampr.org To: "TAPR Spread Spectrum Special Interest Group" Subject: [ss] Re: 900 MHz FHSS Radio Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII List-Unsubscribe: List-Software: Lyris Server version 3.0 List-Subscribe: List-Owner: X-List-Host: Tucson Amateur Packet Radio Reply-To: "TAPR Spread Spectrum Special Interest Group" X-Message-Id: Sender: bounce-ss-6751@lists.tapr.org Precedence: bulk Ryan, No it dosen't mean its moving forward. This is old. I just wanted to remind everyone in a few days it will be 2002. 5 years on this thing. I also noticed that there isn't a link to the Dandin site where it is actually descibed decently. So I thought I'd post a little reminder. Also I don't know if anyone noticed that the TDR-900 as it's called appears to be dual marketed. For ham radio and commerical use. I wonder how that will work assuming a commerical version would still hop 902-926. Won't that be like merticom all over again? Where we have commercial users also using the band causinmg the noise floor to rise. I heard some one complain the 900 MHz band was trashed because of Merticom before. Anyway I have to agree with my friend that transverting 2.4 GHz stuff to 900 looks more promising. And I'd like to say thanks right here for all his hard work with all the gbppr.org documented projects. >So does this mean it's actually moving forward? Or is this just old news? >Ryan (N8YHV) --- You are currently subscribed to ss as: lyris.ss@tapr.org To unsubscribe send a blank email to leave-ss-6751T@lists.tapr.org From bounce-ss-6751@lists.tapr.org Sat Dec 29 22:16:35 2001 Received: from lists.tapr.org (lists.tapr.org [204.17.217.24]) by tapr.org (8.9.3/8.9.3/1.13) with SMTP id WAA07938 for ; Sat, 29 Dec 2001 22:16:33 -0600 (CST) Errors-To: Message-ID: Date: Sat, 29 Dec 2001 23:15:34 -0500 From: Jeff King Organization: Aero Data Systems, Inc. User-Agent: Mozilla/5.0 (Windows; U; Win 9x 4.90; en-US; rv:0.9.2) Gecko/20010726 Netscape6/6.1 X-Accept-Language: en-us MIME-Version: 1.0 To: "TAPR Spread Spectrum Special Interest Group" Subject: [ss] Re: 900 MHz FHSS Radio References: Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit List-Unsubscribe: List-Software: Lyris Server version 3.0 List-Subscribe: List-Owner: X-List-Host: Tucson Amateur Packet Radio Reply-To: "TAPR Spread Spectrum Special Interest Group" X-Message-Id: <3C2E94E6.7010207@aerodata.net> Sender: bounce-ss-6751@lists.tapr.org Precedence: bulk Steve Lampereur wrote: > Ryan, > No it dosen't mean its moving forward. This is old. I just wanted to > remind everyone in a few days it will be 2002. 5 years on this thing. I > also noticed that there isn't a link to the Dandin site where it is > actually descibed decently. So I thought I'd post a little reminder. Steve: I got a update on this at the DCC. Not sure on the state of Dandin... I guess they got hit with the internet crash like everyone else although I see the web site is still going. I did notice the last news item is from mid 2000. But Dwayne is on this list so he can chime in if he wants. The shift seems to have moved to the Texas Packet Radio Society on the SS radio... or at least that seems to be the site the newest data gets posted to. Their website is: http://www.tprs.org and the latest update is at: http://www.tprs.org/publications/qr_arch/Aug2001.pdf TAPR also reports on the progress of the project. See: http://www.tapr.org/PSR/ > Also I don't know if anyone noticed that the TDR-900 as it's called > appears to be dual marketed. For ham radio and commerical use. And as I said privately recently to some TAPR BOD members, I think there is a real commercial need for such a product. A unfilled market nitch so to speak with only Freewave coming close on the RF side. In the U.S. the rural internet market is begging for such a product. > I wonder > how that will work assuming a commerical version would still hop 902-926. > Won't that be like merticom all over again? No.... the problem you had (as well as myself and others) was MetriCom's business philosophy.... basically a bull in a china shop. While technically they (or at least their lawyers) could say they were in compliance with Part 15, they certainly where not in compliance with the spirit of those same rules. Distributed anarchy being part of the basic assumption in the part 15 rules. BTW, I do need to remind everyone that was upset with Metricom that our very own ARRL was hand in hand with them in opposing sensible spread spectrum in amateur radio. FYI, TAPR opposed the ARRL and MetriCom's efforts to hobble spread spectrum experimentation under part 97. > Anyway I have to agree with my friend that transverting 2.4 GHz stuff to > 900 looks more promising. Yes, but that is just a band. You still have the poor process gain to deal with. The market niche I was referring to was a robust "ISDN class" frequency hopping network aware 900mhz radio that is affordable. No-one yet has addressed this other then FreeWave, but their radios are basically null modems and don't have a tcp/ip stack in them. (which is not to say the project your friend did was not needed... just pointing out that low process gain DSSS at 2.4ghz is still low process gain DSSS at 900mhz). > And I'd like to say thanks right here for all > his hard work with all the gbppr.org documented projects. And I'll second this. I've mentioned this site to the PSR editor so hopefully it will get some ink in future PSR's. I think it is one of the best radio hacker sites on the net. I think if you or these folks did a presentation at one of the coming DCC's or Dayton, you'd get quite a bit of interest. I do know a number of folks on the APRSSIG have been playing with this technology. 73 Jeff wb8wka |-------------------------------------------------------------------------| | Jeff King 248-471-1787 F 248-471-0279 e-mail: jeff@aerodata.net | | | | "They that give up essential liberty to obtain a little temporary safety| | deserve neither liberty nor safety." -- Benjamin Franklin, 1759 | |-------------------------------------------------------------------------| --- You are currently subscribed to ss as: lyris.ss@tapr.org To unsubscribe send a blank email to leave-ss-6751T@lists.tapr.org From bounce-ss-6751@lists.tapr.org Sun Dec 30 23:55:32 2001 Received: from lists.tapr.org (lists.tapr.org [204.17.217.24]) by tapr.org (8.9.3/8.9.3/1.13) with SMTP id XAA14388 for ; Sun, 30 Dec 2001 23:55:29 -0600 (CST) From: "Darryl Smith" To: "TAPR Spread Spectrum Special Interest Group" Subject: [ss] RE: ss digest: December 29, 2001 Date: Mon, 31 Dec 2001 16:48:49 +1100 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 In-Reply-To: Importance: Normal List-Unsubscribe: List-Software: Lyris Server version 3.0 List-Subscribe: List-Owner: X-List-Host: Tucson Amateur Packet Radio Reply-To: "TAPR Spread Spectrum Special Interest Group" X-Message-Id: <001401c191be$ddbcdb80$4004a8c0@LAPTOP> Sender: bounce-ss-6751@lists.tapr.org Precedence: bulk Tony and Others >Hello JL! >28 Dec 01 23:13, you wrote to TAPR Spread Spectrum Special Interest >Group: > > J> Homebrew 2.4 GHz to 916 MHz transverter for 802.11b wireless LAN > J> devices: > J> > J> http://www.qsl.net/n9zia/2400-to-900.html > >Hmm, nice idea, would like to have it on another band though, like 1200 >MHz (we don't have 900 MHz here :( ). Tony, VK3JED As far as I can remember 1/2 of the USA ISM band is usable in Oz - I think 915-928 MHz is, with 902-905 MHz being used by a few million mobile phones. However I might be wrong... www.aca.gov.au should be able to give you accurate information. As for a 2400 to 900 MHz transverter, I would not go down this road. There are better engineering ways to go... Common PCMCIA network cards (such as the PCMCIA ones from D-Link) use a Prism 2.5 chipset from Intersil. (http://www.intersil.com/design/prism/wirelessb.asp). This chipset does Spread Spectrum and contains all the RF. The important parts are the Intersil FN4862 which is a power detector and power amplifier, and ISL3685, which is a 2.4GHz RFIF Converter and Synthesizer. As far as I can tell the ISL3685 has the following functions * Receive Preamp - With high and low gain modes * Transmitter Power Amplifier (probably not much gain though) * A PLL module that connects to an external VCO (ENFVZ5F81 in the reference design) Serial frequency control Maybe switching between TX and RX PLL settings * Differential Mixer for received signal * Differemtial Mixer for transmit signal >From my memory of the MiniCircuits databook I think that most of these functions are available as modules that can be wired together without too much effort for any frequency. The issue I see is the PLL control, although a cheap and small FPGA should be able to correct for any differences in PLL control. I forced I suspect that even I could actually come up with a working design - on 900 MHz, 1200 MHz, 440 MHz, 10 GHz, 24 GHz, 880 nM, Whatever. And for all I know there are almost identical devices from Intersil and others on all these frequencies. Darryl --------- Darryl Smith, VK2TDS POBox 169 Ingleburn NSW 2565 Australia Mobile Number 0412 929 634 [+61 4 12 929 634 International] Darryl@radio-active.net.au | www.radio-active.net.au for domain names --- You are currently subscribed to ss as: lyris.ss@tapr.org To unsubscribe send a blank email to leave-ss-6751T@lists.tapr.org From bounce-ss-6751@lists.tapr.org Mon Dec 31 21:41:10 2001 Received: from lists.tapr.org (lists.tapr.org [204.17.217.24]) by tapr.org (8.9.3/8.9.3/1.13) with SMTP id VAA04889 for ; Mon, 31 Dec 2001 21:41:09 -0600 (CST) From: tlang@freeway.apana.org.au (Tony Langdon) Date: 01 Jan 02 14:32:46 +1000 Subject: [ss] RE: ss digest: December 29, 2001 Message-ID: References: Organization: Fidonet: Freeway Usenet <=> FTN gateway To: "TAPR Spread Spectrum Special Interest Group" X-MDaemon-Deliver-To: ss@lists.tapr.org List-Unsubscribe: List-Software: Lyris Server version 3.0 List-Subscribe: List-Owner: X-List-Host: Tucson Amateur Packet Radio Reply-To: "TAPR Spread Spectrum Special Interest Group" X-Message-Id: <850_0201011438@freeway.apana.org.au> Sender: bounce-ss-6751@lists.tapr.org Precedence: bulk Hello Darryl! 31 Dec 01 16:48, you wrote to TAPR Spread Spectrum Special Interest Group: DS> As far as I can remember 1/2 of the USA ISM band is usable in Oz - I DS> think 915-928 MHz is, with 902-905 MHz being used by a few million DS> mobile phones. However I might be wrong... www.aca.gov.au should be DS> able to give you accurate information. True, but using them under ISM conditions sort of undermines the whole idea. Oh, and there's a slight legal problem of using non type approved (i.e. home brew) equipment under a class licence... If only they did here what the did in ZL and turned the ISM band over to us amateurs to share with the unlicenced devices in a similar bashion to 2.4 GHz. :) DS> This chipset does Spread Spectrum and contains all the RF. The DS> important parts are the Intersil FN4862 which is a power detector and DS> power amplifier, and ISL3685, which is a 2.4GHz RFIF Converter DS> and Synthesizer. As long as you can keep it within the amateur band (the ISM band is a bit wider), but then again, the channels are 22 MHz wide, if I recall, so it shouldn't be too hard. DS> From my memory of the MiniCircuits databook I think that most of these DS> functions are available as modules that can be wired together without DS> too much effort for any frequency. The issue I see is the PLL control, DS> although a cheap and small FPGA should be able to correct for any DS> differences in PLL control. DS> DS> I forced I suspect that even I could actually come up with a working DS> design - on 900 MHz, 1200 MHz, 440 MHz, 10 GHz, 24 GHz, 880 nM, DS> Whatever. And for all I know there are almost identical devices from DS> Intersil and others on all these frequencies. Now this would be interesting. Unfortunately, I'm not that up with RF design. I'm going to be more useful when there's enough infrastructure to begin throwing TCP/IP around. :-) Tony, VK3JED .. @C:\BWAVE\TAGLINES.BW -- |Fidonet: Tony Langdon 3:633/284.18 |Internet: tlang@freeway.apana.org.au | | Standard disclaimer: The views of this user are strictly his own. --- You are currently subscribed to ss as: lyris.ss@tapr.org To unsubscribe send a blank email to leave-ss-6751T@lists.tapr.org