From wd5ivd@tapr.org Sat May 02 10:56:30 1998 Received: from [207.8.125.50] (greg-jones-pc1.customer.jump.net [207.8.125.50]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id KAA03041; Sat, 2 May 1998 10:56:23 -0500 (CDT) Message-Id: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Date: Sat, 2 May 1998 10:54:47 -0500 To: "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 From: "Greg Jones, WD5IVD" Subject: Dayton 1998 TAPR Digital Forum and Pack*Bash Dayton 1998 TAPR Digital Forum and PACK*BASH Dayton Hamvention will be here later this month. Just as a reminder, the TAPR Digital Forum is on Friday and this year starts much earlier than in years past. In addition, the PacketBASH banquet will be held on Friday night. If you haven't been to Dayton before, you should think about coming this year. The dates for this year are May 15th - 17th. Check out the web page http://www.tapr.org/tapr/html/dayton.html for any last minute changes in the schedule. The schedule for the TAPR digital forum on Friday is: 10:00 - 10:05am (5 min) Introduction to Forum John Ackermann, N8UR 10:05 - 10:25am (20 min) TAPR Kit/Project/Organizational Update - Greg Jones , WD5IVD TAPR Update and discussion on current activities. 10:25 - 10:45am (20 min) Regulatory Issues - Dewayne Hendricks, WA8DZP Update on Regulatory Issues related to Digital activity. 10:45 - 11:30am (45 min) TAPR 900Mhz FHSS Radio Project Tom McDermott, N5EG / Greg Jones, WD5IVD Latest Information on Status and design of 900Mhz FHSS Radio Design. 11:30 - 12:15pm (45 min) GPS Projects - Steve Bible, N7HPR / Tom Clark, W3IWI TAPR has introduced several GPS related items in the last year. DGPS, GPS Interface boards, TAC-2, Future TOC add-on, etc 12:15 - 12:30pm (15 min) Break 12:30 - 1:00pm (30 min) Linux AX.25 - John Ackermann, N8UR Making AX.25 play on Linux 1:00pm - 1:45pm (60 min) APRS SIG and APRS Update Stan Horzepa, WA1LOU, APRS SIG Chair with the APRS Authors SIG meeting discussing current and future activities in APRS. ----------------------------------------------------- PACK*BASH and TAPR Banquet Attending the 1998 Dayton Hamvention? Then don't miss out on PACK*BASH and TAPR Banquet. What? An event for the digitally-inclined ham, featuring: * Buffet dinner * Speaker Doug McKinney, KC3RL discussing GPS and his Bouy projects in the Pacific * TAPR special interest group meetings * Prize Drawing! When? Friday evening, May 15, 1998 Doors open at 7:00 pm; dinner served at 7:30 pm Speaker and meetings after dinner Where? NCR "Sugarcamp" Conference Center, 101 W. Schantz Ave. -- South of downtown Dayton, just west of Main St. (Rt 48). Maps available on the TAPR web site or at the TAPR booth. (http://www.tapr.org/tapr/html/dayton.html) How? Dinner requires advance registration and payment through TAPR. Tickets will be available at the TAPR booth on Friday, though we strongly encourage registration Hamvention. The cost is $20.00 per person, tax and tip included. All amateurs are welcome to attend, enjoy the speaker, and participate in the meetings, although only those purchasing a dinner can eat. To register, contact: PACK*BASH c/o TAPR 8987-309 E. Tanque Verde Road #337 Tucson, AZ 85749-9399 Phone: (940) 383-0000 Fax: (940) 566-2544 Internet: tapr@tapr.org Visa/Mastercard Accepted Who? PACK*BASH is co-sponsored by TAPR -- Tucson Amateur Packet Radio, the national leader in digital communication -- and the Miami Valley FM Association, Dayton's packet radio club. For more information (including maps), go to http://www.tapr.org/tapr/html/dayton.html, or send e-mail to tapr@tapr.org. You can request information via packet radio at BASH@N8ACV.#DAY.OH.USA.NOAM. ---------------------------------------------------------------------------- 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 bm@lynx.ve3jf.ampr.org Fri May 08 18:48:13 1998 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 SAA09037 for ; Fri, 8 May 1998 18:48:11 -0500 (CDT) From: bm@lynx.ve3jf.ampr.org Received: (from bm@localhost) by lynx.ve3jf.ampr.org (8.8.5/8.8.5) id TAA19787 for ss@tapr.org; Fri, 8 May 1998 19:48:37 -0400 Message-Id: <199805082348.TAA19787@lynx.ve3jf.ampr.org> Date: Fri, 8 May 1998 19:48:35 -0400 (EDT) To: ss@tapr.org Subject: Wireless Access Mag X-Mailer: Ishmail 1.3.2-970722-linux MIME-Version: 1.0 Content-Type: text/plain There's a new magazine some of you might be interested in: Wireless Access Technologies, published in the UK. Although it's telecom oriented, it will be covering WLANs and other topics of interest to SS afficionados. You can check out their website at http://www.watmag.com, and fill out the form to convince them you qualify for a freebie subscription. 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 mike@mary.g6phf.ampr.org Sat May 16 14:04:05 1998 Received: from mail-atm.lancs.ac.uk (mail-atm.lancs.ac.uk [194.80.32.55]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id OAA06776 for ; Sat, 16 May 1998 14:04:03 -0500 (CDT) Received: from mail-atm.lancs.ac.uk (actually host localhost) by mail-atm.lancs.ac.uk with Local SMTP (PP); Sat, 16 May 1998 20:03:59 +0100 Received: from lurpac.lancs.ac.uk (lurpac.lancs.ac.uk [148.88.12.208]) by mail-atm.lancs.ac.uk with SpooMTA 1.23; Sat, 16 May 1998 20:03:59 +0000 Received: from mary.g6phf.ampr.org by lurpac.lancs.ac.uk; Sat, 16 May 1998 20:03:56 +0100 Received: (from mike@localhost) by mary.g6phf.ampr.org (8.8.5/8.8.4) id UAA24921 for ss@tapr.org; Sat, 16 May 1998 20:03:59 +0100 Date: Sat, 16 May 1998 20:03:59 +0100 From: Mike Dent Message-Id: <980516200359.ZM24920@mary.g6phf.ampr.org> Reply-to: mike@lurpac.lancs.ac.uk X-Organisation: Bay Metropolitan Area Network. X-Mailer: Z-Mail (4.0.1 13Jan97 Caldera) To: ss@tapr.org Subject: Amplification of DSSS?? MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Hi folks, I am new to this list so forgive what may be an FAQ! What are the implications involved with amplifying the output of a DSSS LAN card, such as the WaveLAN card? Is it feasable to use a linear type amplifier for this purpose? Thanks Mike -- "I remember when NOS was NET and all you got was "Welcome to TTY-link.." " Mike Dent. G6PHF. Morecambe, Lancs. UK.| BBSnet=G6PHF@GB7MBB.#16.GBR.EU AMPRnet=g6phf@gb7mbb.ampr.org | INTERnet=mike@lurpac.lancs.ac.uk WWW=http://www.lurpac.lancs.ac.uk/g6phf/g6phf.html | BayBBS +44 (0)1524 833222 From chris@yordas.demon.co.uk Sat May 16 16:36:35 1998 Received: from post.mail.demon.net (post-10.mail.demon.net [194.217.242.39]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id QAA15696 for ; Sat, 16 May 1998 16:36:33 -0500 (CDT) Received: from yordas.demon.co.uk ([158.152.210.29]) by post.mail.demon.net id aa1023021; 16 May 98 21:30 GMT Received: from yordas.demon.co.uk (chris@localhost [127.0.0.1]) by yordas.demon.co.uk (8.8.7/8.8.7) with ESMTP id VAA17911 for ; Sat, 16 May 1998 21:36:58 +0100 Sender: chris@yordas.demon.co.uk Message-ID: <355DF8E9.D6CC0E3E@yordas.demon.co.uk> Date: Sat, 16 May 1998 20:36:57 +0000 From: ChrisEilbeck Reply-To: chris@yordas.demon.co.uk Organization: Dis- X-Mailer: Mozilla 4.03 [en] (X11; I; Linux 2.0.32 i586) MIME-Version: 1.0 To: ss@tapr.org Subject: Re: [SS:1951] Amplification of DSSS?? References: <980516200359.ZM24920@mary.g6phf.ampr.org> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Mike Dent wrote: > > What are the implications involved with amplifying the output of a DSSS > LAN card, such as the WaveLAN card? > Is it feasable to use a linear type amplifier for this purpose? You would need a linear amplifier, I don't know about the Wavelan card but it probably uses BPSK. You'll probably need to hack the card as well to seperate the transmit and receive paths. Of course we are only talking theoretically so we needn't worry about the legal implications of upping the power. Chris -- Chris Eilbeck mailto:chris@yordas.demon.co.uk From bb@wv.com Sat May 16 17:59:27 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 RAA19991 for ; Sat, 16 May 1998 17:59:26 -0500 (CDT) Received: from battleship (auntiem.wv.com [205.136.66.19]) by kansas.pn.com (8.8.8/8.8.0) with ESMTP id SAA09589; Sat, 16 May 1998 18:59:23 -0400 (EDT) Received: (bb@localhost) by battleship (8.8.5/8.6.12) id TAA05815; Sat, 16 May 1998 19:07:23 -0400 Date: Sat, 16 May 1998 19:07:23 -0400 Message-Id: <199805162307.TAA05815@battleship> From: Brian Bartholomew To: ss@tapr.org Subject: [SS:1952] Re: Amplification of DSSS?? > What are the implications involved with amplifying the output of a > DSSS LAN card, such as the WaveLAN card? I assume the reason you are amplifying is to drastically increase the distance between endpoints. You should find out what scheme the cards use to prevent simultaneous interfering transmission. If it's a CS/CDMA (Collision Sense/ Collision Detect Multiple Access) scheme like ethernet, you'll find there are timeouts that correspond to a maximum distance between cards due to lightspeed delay. If there are only two stations on the link, and the radio works full duplex, you may be able to ignore this problem because there will never be interfering transmissions. A member of the League for Programming Freedom (LPF) ftp://ftp.gnu.org/pub/lpf ------------------------------------------------------------------------------- Brian Bartholomew - bb@wv.com - www.wv.com - Working Version, Cambridge, MA From bb@wv.com Sat May 16 18:15:27 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 SAA20947 for ; Sat, 16 May 1998 18:15:25 -0500 (CDT) Received: from battleship (auntiem.wv.com [205.136.66.19]) by kansas.pn.com (8.8.8/8.8.0) with ESMTP id TAA09674; Sat, 16 May 1998 19:15:23 -0400 (EDT) Received: (bb@localhost) by battleship (8.8.5/8.6.12) id TAA05827; Sat, 16 May 1998 19:23:24 -0400 Date: Sat, 16 May 1998 19:23:24 -0400 Message-Id: <199805162323.TAA05827@battleship> From: Brian Bartholomew To: ss@tapr.org Subject: [SS:1952] Re: Amplification of DSSS?? There is such a thing as full-duplex ethernet. It's used as a point- to-point link between two stations, and has separate wire pairs for transmit and receive. I always figured this for the easiest way to get 100 Mbits in and out of a PC, that was suitable for plugging into a radio (or a free-air-path laser) and insensitive to path delay. Actually, you may not need the full-duplex variant to get separated transmit and receive. Seems to me a 10BaseT interface already has the channels separated into two wire pairs. However, the hardware may not be capable of sending and receiving at the same time. A member of the League for Programming Freedom (LPF) ftp://ftp.gnu.org/pub/lpf ------------------------------------------------------------------------------- Brian Bartholomew - bb@wv.com - www.wv.com - Working Version, Cambridge, MA From claudio@cln.it Sat May 16 18:32:40 1998 Received: from nausicaa.cln.it (root@nausicaa.cln.it [194.184.28.2]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id SAA23818 for ; Sat, 16 May 1998 18:32:37 -0500 (CDT) Received: from cln.it (iw5cei.cln.it [194.184.28.125]) by nausicaa.cln.it (8.8.5/8.8.5) with ESMTP id BAA01127; Sun, 17 May 1998 01:48:41 +0200 Message-ID: <355E2296.BADC2D39@cln.it> Date: Sun, 17 May 1998 01:34:46 +0200 From: Claudio Ceravolo X-Mailer: Mozilla 4.03 [it] (Win95; I) MIME-Version: 1.0 To: ss@tapr.org Subject: harris prism Content-Type: multipart/mixed; boundary="------------EC940DCDEA60206E67D5B234" Questo è un messaggio multi-parte scritto in formato MIME. --------------EC940DCDEA60206E67D5B234 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit I have 4 PRISM HARRIS demo board and I sell 2 prism demo board because for my use is too 2 board if you know the device well or you can see at http://www.semi.harris.com/prism/half/prismkit.htm I have all kit and I can sell at 2000 USD with also the data sheets of Harris and AMD the name of the kit is PRISM1KIT-EVAL I have see the performances and there are very high you can transfer 60 Mbit in 7 min to a computer at another . -- Grazie per l'interesse Claudio Ceravolo claudio@cln.it Electronic Systems srl http://www.cln.it/elsys /////// (o)(o) / = --------------EC940DCDEA60206E67D5B234 Content-Type: text/x-vcard; charset=us-ascii; name="vcard.vcf" Content-Transfer-Encoding: 7bit Content-Description: Scheda di Claudio Ceravolo Content-Disposition: attachment; filename="vcard.vcf" begin: vcard fn: Claudio Ceravolo n: Ceravolo;Claudio org: Electronic Systems email;internet: claudio@cln.it x-mozilla-cpt: ;0 x-mozilla-html: FALSE version: 2.1 end: vcard --------------EC940DCDEA60206E67D5B234-- From jeff@aerodata.net Sat May 16 19:00:34 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 TAA03872 for ; Sat, 16 May 1998 19:00:32 -0500 (CDT) Received: from alfalfa (alfalfa.mich.com [198.108.18.18]) by aerodata.net (8.8.4/8.8.4) with SMTP id UAA23814 for ; Sat, 16 May 1998 20:13:15 -0400 Message-Id: <3.0.5.32.19980516195840.00a47bf0@aerodata.net> X-Sender: jeff@aerodata.net (Unverified) X-Mailer: QUALCOMM Windows Eudora Pro Version 3.0.5 (32) Date: Sat, 16 May 1998 19:58:40 -0400 To: ss@tapr.org From: Jeff King Subject: Re: [SS:1951] Amplification of DSSS?? In-Reply-To: <980516200359.ZM24920@mary.g6phf.ampr.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" At 02:08 PM 5/16/98 -0500, Mike Dent wrote: >Hi folks, I am new to this list so forgive what may be an FAQ! >What are the implications involved with amplifying the output of a DSSS LAN >card, such as the WaveLAN card? >Is it feasable to use a linear type amplifier for this purpose? >Thanks >Mike This is fairly commonly done with the Wavelan card, it being the component element of any number of wireless bridges. You'll need a quick changeover between transmit and recieve. Something on the order of 50-100usec. You'll also need to insure a true linear amplifier (i.e. not a class C amp). A company out of Florida I think makes a amplifier for this purpose. I think there name is Hyperlink. I used one once on another project and I found the engineering to be quite poor. What band do you need one for? Pole Zero (they were at Dayton) makes a 2.5ghz one. -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 robs@bconnex.net Wed May 20 09:34:52 1998 Received: from bconnex.net (bconnex.net [205.189.200.9]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id JAA22617 for ; Wed, 20 May 1998 09:34:50 -0500 (CDT) Received: from robs.bconnex.net (iah11-18.barrie.connex.net [209.212.39.18]) by bconnex.net (8.8.5/8.8.5) with SMTP id KAA07381 for ; Wed, 20 May 1998 10:33:13 -0400 (EDT) Message-Id: X-Sender: robs@bconnex.net X-Mailer: QUALCOMM Windows Eudora Pro Version 4.0 Date: Wed, 20 May 1998 10:32:17 -0400 To: ss@tapr.org From: Rob Smith Subject: Comet FP-19 Base Antenna Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" I'm looking at buying a Comet FP-19 Base Antenna for 900 MHz and would appreciate any comments good or bad. Also any info on best street price. Thanks. Rob Smith Collingwood, Ont E-Mail: robs@bconnex.net From wd5ivd@tapr.org Wed May 20 10:05:30 1998 Received: from [207.43.172.66] ([207.43.172.66]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id KAA24122 for ; Wed, 20 May 1998 10:05:29 -0500 (CDT) Message-Id: In-Reply-To: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Date: Wed, 20 May 1998 10:05:12 -0500 To: ss@tapr.org From: "Greg Jones, WD5IVD" Subject: Re: [SS:1957] Comet FP-19 Base Antenna While it is a good antenna, both the ones I have deployed haven't work for the fact that they are verticle in nature. I took both of them down and am now using a horz omni which does work. I found this to be true for both the Freewave and now the Cylink testing I have done. Greg > I'm looking at buying a Comet FP-19 Base Antenna >for 900 MHz and would >appreciate any comments good or bad. Also any info on best street price. > Thanks. > >Rob Smith >Collingwood, Ont >E-Mail: robs@bconnex.net ----- Greg Jones, WD5IVD Austin, Texas wd5ivd@tapr.org http://www.tapr.org/~wd5ivd Real World, The n.: 5. Anywhere outside a university. "Poor fellow, he's left UT Austin and gone into the real world." From robs@bconnex.net Wed May 20 10:17:24 1998 Received: from bconnex.net (bconnex.net [205.189.200.9]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id KAA24853 for ; Wed, 20 May 1998 10:17:22 -0500 (CDT) Received: from robs.bconnex.net (iah11-18.barrie.connex.net [209.212.39.18]) by bconnex.net (8.8.5/8.8.5) with SMTP id LAA12789 for ; Wed, 20 May 1998 11:15:54 -0400 (EDT) Message-Id: <199805201515.LAA12789@bconnex.net> X-Sender: robs@bconnex.net X-Mailer: QUALCOMM Windows Eudora Pro Version 4.0 Date: Wed, 20 May 1998 11:17:04 -0400 To: ss@tapr.org From: Rob Smith Subject: Bi-lateral Amplification 0f 900 MHz DSSS Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Does anyone have experience in converting low cost equipment, like the separate PA & LNA from Down East Microwave, to provide bi-lateral 900MHz amplification of TDMA DSSS? How is it done in the Hyperlink commercial amplifier? Have you seen a home construction article for such an amplifier? Thanks in advance for all information. Rob Smith Collingwood, Ont E-Mail: robs@bconnex.net From n5jxs@tamu.edu Wed May 20 16:10:02 1998 Received: from page4.tamu.edu (root@page4.tamu.edu [128.194.80.8]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id QAA25706 for ; Wed, 20 May 1998 16:09:58 -0500 (CDT) Received: from armageddon (armageddon.tamu.edu [128.194.80.126]) by page4.tamu.edu (8.8.5/8.8.5) with SMTP id QAA32637 for ; Wed, 20 May 1998 16:10:25 -0500 Message-ID: <35638CA0.18F8@tamu.edu> Date: Wed, 20 May 1998 21:08:32 -0500 From: Gerry Creager Reply-To: n5jxs@tamu.edu Organization: Mapping Sciences Laboratory, Texas A&M University X-Mailer: Mozilla 3.01 (WinNT; I) MIME-Version: 1.0 To: ss@tapr.org Subject: Re: [SS:1958] Re: Comet FP-19 Base Antenna References: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Greg Jones, WD5IVD wrote: > > While it is a good antenna, both the ones I have deployed haven't work for > the fact that they are verticle in nature. I took both of them down and am > now using a horz omni which does work. > > I found this to be true for both the Freewave and now the Cylink testing I > have done. > > Greg > > > I'm looking at buying a Comet FP-19 Base Antenna > >for 900 MHz and would > >appreciate any comments good or bad. Also any info on best street price. If you don't require gain, and are looking for sturdy and inexpensive, a diskcone works pretty well (the Radio Shack version I have is over 5 years old) and has what can best b described as a "glob" pattern, so it's going to be fairly effective in horizontal and vertical planes. 73, gerry From jeff@mich.com Wed May 20 18:22:49 1998 Received: from server1.mich.com (server1.mich.com [198.108.16.2]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id SAA02793 for ; Wed, 20 May 1998 18:22:48 -0500 (CDT) Received: from alfalfa (alfalfa.mich.com [198.108.18.18]) by server1.mich.com (8.8.7/8.8.7) with SMTP id TAA00051 for ; Wed, 20 May 1998 19:22:45 -0400 Message-Id: <3.0.5.32.19980520192220.04203b50@mail.mich.com> X-Sender: jeff@mail.mich.com (Unverified) X-Mailer: QUALCOMM Windows Eudora Pro Version 3.0.5 (32) Date: Wed, 20 May 1998 19:22:20 -0400 To: ss@tapr.org From: Jeff King Subject: Re: [SS:1957] Comet FP-19 Base Antenna In-Reply-To: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" At 09:35 AM 5/20/98 -0500, Rob Smith wrote: > I'm looking at buying a Comet FP-19 Base Antenna for 900 MHz and would >appreciate any comments good or bad. Also any info on best street price. > Thanks. I've used one for over two years at my ISP, and have had good luck with them. I'm using notch filters on it to get rid of nearby pagers, but thats a function of polarization. I can get about 3-4 miles range from the ISP to my car, through a wooded suburban environment. The comet is about 35 feet above ground feed with 75 feet of 9913. Topography here is flat. I'm using Freewave radios (hoppers) on both ends. I think I paid about $110 for it. Your other option for a gain omni antenna is Olde' Antenna Lab, out of I think Denver. Dave Klinger runs it and he was at the DownEast Microwave booth. He has a stacked omni (like the old big wheel's of 6 meters) that can give you 6 dBi gain in the horizontal plane. I think he wants about $300 for that. -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 jeff@mich.com Wed May 20 18:45:24 1998 Received: from server1.mich.com (server1.mich.com [198.108.16.2]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id SAA10921 for ; Wed, 20 May 1998 18:45:22 -0500 (CDT) Received: from alfalfa (alfalfa.mich.com [198.108.18.18]) by server1.mich.com (8.8.7/8.8.7) with SMTP id TAA00697; Wed, 20 May 1998 19:45:40 -0400 Message-Id: <3.0.5.32.19980520194451.041fdc10@mail.mich.com> X-Sender: jeff@mail.mich.com (Unverified) X-Mailer: QUALCOMM Windows Eudora Pro Version 3.0.5 (32) Date: Wed, 20 May 1998 19:44:51 -0400 To: ss@tapr.org From: Jeff King Subject: Re: [SS:1959] Bi-lateral Amplification 0f 900 MHz DSSS Cc: robs@bconnex.net In-Reply-To: <199805201515.LAA12789@bconnex.net> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" At 10:21 AM 5/20/98 -0500, Rob Smith wrote: >Does anyone have experience in converting low cost equipment, like the >separate PA & LNA from Down East Microwave, to provide bi-lateral 900MHz >amplification of TDMA DSSS? You'll need a linear amp and very quick turnaround time (pin diode). Down East has a 900mhz module they sell (I think it is the PA11) that will do about 10 watts. They don't have any off the shelf pin switching modules but you should be able to home brew something. >How is it done in the Hyperlink commercial >amplifier? Those things remind me of CB amps from the 1970's. I heard a rumor from a competitor of theirs that H.L. was using a class C brick in them. I do know from personal experience they are not designed very well, there are no reverse voltage protection diodes in them and the circuit is epoxy encapsulated. >Have you seen a home construction article for such an amplifier? Yes, but all of the ones I have seen have been relay switched, and useless for spread spectrum. Your key elements you might want are as follows: Quick T/R switching (pin diode) Linear Can be powered via the COAX cable (DC on top of RF) Gain adjustable Band pass filter Sorry couldn't have been of more help. I have been working on a design, off and on, for a while now and if I get any further will give you more info. -Jeff wb8wka ------------------------------------ | 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 tv@juno.com Wed May 20 23:58:35 1998 Received: from x6.boston.juno.com (x6.boston.juno.com [205.231.101.23]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id XAA01054 for ; Wed, 20 May 1998 23:58:34 -0500 (CDT) Received: (from tv@juno.com) by x6.boston.juno.com (queuemail) id AOI11135; Thu, 21 May 1998 00:57:38 EDT To: ss@tapr.org Date: Wed, 20 May 1998 20:42:26 -0700 Subject: TAPR SS project Message-ID: <19980520.214257.12078.5.tv@juno.com> References: <199805201515.LAA12789@bconnex.net> X-Mailer: Juno 1.49 X-Juno-Line-Breaks: 1-6 From: tv@juno.com (Tim Vaughan) What is the status of the TAPR frequency hopping spread sprectrum project ? I have not heard much lately. It sounds like an exciting design. Tim ( tv@juno.com ) _____________________________________________________________________ You don't need to buy Internet access to use free Internet e-mail. Get completely free e-mail from Juno at http://www.juno.com Or call Juno at (800) 654-JUNO [654-5866] From karn@qualcomm.com Thu May 21 00:58:10 1998 Received: from laptop.ka9q.ampr.org (maggie.ka9q.ampr.org [199.106.106.5]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id AAA16748 for ; Thu, 21 May 1998 00:58:08 -0500 (CDT) Received: from qualcomm.com ([127.0.0.1]) by laptop.ka9q.ampr.org with esmtp id m0ycI3Y-000HdKC (Debian Smail-3.2 1996-Jul-4 #2); Wed, 20 May 1998 16:13:56 -0700 (PDT) Sender: karn@tapr.org Message-ID: <356363B4.15087BB3@qualcomm.com> Date: Wed, 20 May 1998 16:13:56 -0700 From: Phil Karn X-Mailer: Mozilla 4.05 [en] (X11; U; Linux 2.0.33 i586) MIME-Version: 1.0 To: ss@tapr.org Subject: Re: [SS:1951] Amplification of DSSS?? References: <980516200359.ZM24920@mary.g6phf.ampr.org> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Mike Dent wrote: > What are the implications involved with amplifying the output of a DSSS LAN > card, such as the WaveLAN card? > Is it feasable to use a linear type amplifier for this purpose? Amplifier linearity is a consideration with most DSSS signals. Depending on the waveform, the peak-to-average power ratio can sometimes approximate that of gaussian noise (which the signal resembles). A linear amplifier with sufficient headroom is important to keep the occupied bandwidth within proper limits. I know this is an issue with IS-95 CDMA. There's very tight filtering on the transmitted waveform to protect adjacent narrowband AMPS signals, and this filtering causes a lot of envelope fluctuations. Phil From lylej@azstarnet.com Thu May 21 09:28:21 1998 Received: from cepheus.azstarnet.com (cepheus.azstarnet.com [169.197.1.36]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id JAA21500 for ; Thu, 21 May 1998 09:28:19 -0500 (CDT) Received: from tomswift (dialup14ip004.tus.azstarnet.com [169.197.36.132]) by cepheus.azstarnet.com (8.8.5-nerd/8.8.5) with SMTP id HAA01334 for ; Thu, 21 May 1998 07:28:16 -0700 (MST) X-Sent-via: StarNet http://www.azstarnet.com/ Message-Id: <3.0.5.32.19980521071918.008f3750@pop.azstarnet.com> X-Sender: lylej@pop.azstarnet.com X-Mailer: QUALCOMM Windows Eudora Pro Version 3.0.5 (32) Date: Thu, 21 May 1998 07:19:18 -0700 To: ss@tapr.org From: Lyle Johnson Subject: Re: [SS:1964] Re: Amplification of DSSS?? In-Reply-To: <356363B4.15087BB3@qualcomm.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" At 01:03 AM 5/21/98 -0500, Phil Karn wrote: >Mike Dent wrote: > >> What are the implications involved with amplifying the output of a DSSS LAN >> card, such as the WaveLAN card? >> Is it feasable to use a linear type amplifier for this purpose? > >Amplifier linearity is a consideration with most DSSS signals. >Depending on the waveform, the peak-to-average power ratio can >sometimes approximate that of gaussian noise (which the signal >resembles). A linear amplifier with sufficient headroom is important >to keep the occupied bandwidth within proper limits. > >I know this is an issue with IS-95 CDMA. There's very tight filtering >on the transmitted waveform to protect adjacent narrowband AMPS >signals, and this filtering causes a lot of envelope fluctuations. We have been very successful using a Mini Circuits Labs linear amplifier with a Harris PRISM chipset. This combination gives us +30dBm and things look clean on the spectrum analyzer. With so-called "5 dB omnidirectional" antennas, a feedline about1 meter in length of RG-213 (lossy) and no pre-amp on the PRISM (it has lots of other problems that combine to give it a pretty high threshold) we get just under 9 km range over line-of-sight. 73, Lyle From bm@lynx.ve3jf.ampr.org Wed May 27 10:29:03 1998 Received: from lynx.ve3jf.ampr.org (root@pc-18446.on.rogers.wave.ca [24.112.93.218]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id KAA03440 for ; Wed, 27 May 1998 10:29:00 -0500 (CDT) From: bm@lynx.ve3jf.ampr.org Received: (from bm@localhost) by lynx.ve3jf.ampr.org (8.8.5/8.8.5) id XAA09739 for ss@tapr.org; Tue, 26 May 1998 23:34:06 -0400 Message-Id: <199805270334.XAA09739@lynx.ve3jf.ampr.org> Date: Tue, 26 May 1998 23:34:05 -0400 (EDT) To: ss@tapr.org Subject: Re: [SS:1963] TAPR SS project In-Reply-To: <19980520.214257.12078.5.tv@juno.com> X-Mailer: Ishmail 1.3.2-970722-linux MIME-Version: 1.0 Content-Type: text/plain tv@juno.com (Tim Vaughan) wrote: > What is the status of the TAPR frequency hopping spread sprectrum project > ? > I have not heard much lately. It sounds like an exciting design. I don't recall seeing a reply to this, so I'll just mention that the web page for info on this project is http://www.tapr.org/tapr/html/taprfhss.html Good progress has been made, but there's a long way to go yet. I wouldn't expect to see fully functional hardware until sometime next year. 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 mike@mary.g6phf.ampr.org Wed May 27 10:44:57 1998 Received: from mail-atm.lancs.ac.uk (mail-atm.lancs.ac.uk [194.80.32.55]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id KAA04904 for ; Wed, 27 May 1998 10:44:45 -0500 (CDT) Received: from mail-atm.lancs.ac.uk (actually host localhost) by mail-atm.lancs.ac.uk with Local SMTP (PP); Wed, 27 May 1998 13:49:37 +0100 Received: from lurpac.lancs.ac.uk (lurpac.lancs.ac.uk [148.88.12.208]) by mail-atm.lancs.ac.uk with SpooMTA 1.23; Wed, 27 May 1998 13:49:37 +0000 Received: from mary.g6phf.ampr.org by lurpac.lancs.ac.uk; Wed, 27 May 1998 13:48:52 +0100 Received: (from mike@localhost) by mary.g6phf.ampr.org (8.8.5/8.8.4) id NAA24991 for ss@tapr.org; Wed, 27 May 1998 13:48:55 +0100 Date: Wed, 27 May 1998 13:48:55 +0100 From: Mike Dent Message-Id: <980527134853.ZM24990@mary.g6phf.ampr.org> Reply-to: mike@lurpac.lancs.ac.uk X-Organisation: Bay Metropolitan Area Network. X-Mailer: Z-Mail (4.0.1 13Jan97 Caldera) To: ss@tapr.org Subject: More on DS SS amplification.... MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Hello again. Many thanks to all those who replied to my last message regarding amplification of DS SS. The cards in question are Lucent Wavelan cards operating at 2.4Ghz, using DS SS. The output of the cards is 32mW. I think I need about 1 watt for my app- lication. Has anybody constructed their own amplifiers for this type of purpose? I have a German design for a linear PA ( I cant remember the designer, the article is at work), it seems to have sufficient gain and operates to 5 watts. I am wondering if this kind of approach would be worthwhile? I was considering using a seperate antenna for transmit and receive at each end, using a simple splitter from the output of the Wavelan card, I realise I would loose at least 3dB doing this. Maybe it is easier using some kind of switching arangment, pin diode etc and sticking with one antenna?? Thanks again to anybody who replies, I dont want to go to all the bother of constructing some PA's only to find they are useless, so any ideas are more than welcome. 73 Mike -- "I remember when NOS was NET and all you got was "Welcome to TTY-link.." " Mike Dent. G6PHF. Morecambe, Lancs. UK.| BBSnet=G6PHF@GB7MBB.#16.GBR.EU AMPRnet=g6phf@gb7mbb.ampr.org | INTERnet=mike@lurpac.lancs.ac.uk WWW=http://www.lurpac.lancs.ac.uk/g6phf/g6phf.html | BayBBS +44 (0)1524 833222 From ssampson@access.usa-site.net Thu May 28 07:23:04 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 HAA17237 for ; Thu, 28 May 1998 07:23:02 -0500 (CDT) Received: (from ssampson@localhost) by access.usa-site.net (8.8.5/8.8.5) id HAA23169 for ss@tapr.org; Thu, 28 May 1998 07:22:59 -0500 From: Steve Sampson Message-Id: <199805281222.HAA23169@access.usa-site.net> Subject: VCO PLL To: ss@tapr.org Date: Thu, 28 May 1998 07:22:59 -0500 (CDT) Content-Type: text I finally got around to reading the Fall 97 PSR, and enjoyed reading about the TAPR SS Radio; very well written. Reading about the PLL design there was a trade-off to allow the units to be shipped outside the U.S. and Canada. The thought I had, was: is there any other country which allows Amateur SS? I guess the real question is, would user access to the hopping sequence be an advantage or disadvantage? The article didn't go past the legal restriction. I really like the decision to use the Qualcomm stuff, since reading Karns tutorials and slides has been very interesting as well. Steve From wd5ivd@tapr.org Sat May 30 13:43:53 1998 Received: from [207.8.125.50] (greg-jones-pc1.customer.jump.net [207.8.125.50]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id NAA10240; Sat, 30 May 1998 13:43:37 -0500 (CDT) Message-Id: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Date: Sat, 30 May 1998 13:42:11 -0500 To: "TAPR-BB list mailing", "NETSIG list mailing", "APRS SIG list mailing", "HF SIG list mailing", " Spread Spectrum ", "BBS SIG list mailing", " tacgps " From: "Greg Jones, WD5IVD" Subject: TAPR Office Closure The TAPR office will be closed for at least two weeks beginning Monday. Dorothy Jones, KA5DWR, Office Manager underwent surgery this morning and will be in the hospital the rest of this week recovering. Good news is that the surgery went well and we are waiting for Dorothy now to get out of post-op. E-Mails, Faxes, and Calls to the office will still be accepted, but expect delays in getting kits and publications shipped until things get back to normal at the Jone's household. I'll be heading to Denton to help at the office while Dorothy is recovering, but things will be slowed down until Dorothy is feeling better. You can send flowers or greetings to: Denton Community Hospital 207 North Bonnie Brae Denton TX 76201 Telephone: 940 898-7000 Room 139, Dorothy T Jones I will be taking e-mail up to her if you want to send something by e-mail. Greg Jones, WD5IVD Pres. TAPR ----- Greg Jones, WD5IVD Austin, Texas wd5ivd@tapr.org http://www.tapr.org/~wd5ivd Real World, The n.: 5. Anywhere outside a university. "Poor fellow, he's left UT Austin and gone into the real world." From wd5ivd@tapr.org Sun May 31 14:22:42 1998 Received: from [207.8.125.50] (greg-jones-pc1.customer.jump.net [207.8.125.50]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id OAA17017; Sun, 31 May 1998 14:22:26 -0500 (CDT) Message-Id: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Date: Sun, 31 May 1998 14:10:14 -0500 To: "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 From: "Greg Jones, WD5IVD" Subject: 1998 ARRL and TAPR Digital Communications Conference 1998 ARRL and TAPR Digital Communications Conference September 25-27, 1998 Chicago, Illinois (minutes from O'Hare Airport) Web: http://www.tapr.org/dcc ----- It's that time again! Mark your calendar and think about what to publish for the upcoming 17th Annual ARRL and TAPR Digital Communications Conference. This is the third year in which the ARRL Digital Communications Conference and TAPR Annual General Meeting are joined into one conference! The ARRL and TAPR Digital Communications Conference is an international forum for radio amateurs in digital communications, networking, and related technologies, who meet, publish their work, and present new ideas and techniques for discussion. Presenters and attendees have the opportunity to exchange ideas and learn about recent hardware and software advances, theories, experimental results, and practical applications. The Digital Communications Conference is not just for the digital expert, but for digitally-oriented amateurs at all levels of expertise. 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 technigue) versus hubbed (cellular style) and other infrastructure dependant 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 ARRL and TAPR especially welcome papers from full-time students to compete for the third annual 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, 1998. 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 ----- Registration Contact the TAPR office by phone, fax, or e-mail (numbers and addresses are above) to register or for additional meeting information. MasterCard and VISA are accepted. - Preregistration (before Sept 1): $42.00 * - Late registration or at door: $47.00 * * - Conference registration includes Conference Proceedings, Saturday sessions/meetings, and lunch. - Saturday Evening Dinner (limited space): $20.00 ** ** - Includes dinner, speaker, prize drawing --- Seminar/symposia Note: You do not have to be registered for the conference to attend one or more of the seminars/symposia. - Friday, 1-8 PM, Second Annual APRS National Symposium (full day) Registration: $25*** --- - Friday 3-7 PM, Infrastructure Technologies in Amateur Radio, conducted by Don Lemke, WB9MJN Registration: $15*** --- Sunday 8:30-11 AM and 11:30 AM-2 PM, RUDAK Future Operations and Experimentations by Lyle Johnson, WA7GXD, and Packet Radio Networks with Millions or Billions of Stations by Tim Shepard, KD1KY Registration $20*** *** Cost of seminar or symposium includes the cost of handout materials. Contact TAPR to register for the DCC: 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 http://www.tapr.org