November 2007 - AMSAT-BB - mailman.amsat.org

Call for Papers--2007 ARRL/TAPR Digital Communications Conference
by Ford, Steve, WB8IMY 16 Jul '12

16 Jul '12

Technical papers are solicited for presentation at the 26th Annual ARRL and TAPR Digital Communications Conference to be held September 28-30, 2007 in Hartford, Connecticut. These papers will also be published in the Conference Proceedings (you do NOT need to attend the conference to have your paper included in the Proceedings). The submission deadline is July 31, 2007. Please send papers to: Maty Weinberg ARRL 225 Main St Newington, CT 06111 or you can make your submission via e-mail to: maty(a)arrl.org Papers will be published exactly as submitted and authors will retain all rights. 73 . . . Steve, WB8IMY ARRL

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Re: FYI -- One Laptop per Child (OLPC) Opportunity
by Tom Clark, K3IO 23 Jan '08

23 Jan '08

(I posted this a couple of days ago, but it was never released from amsat.org limbo. So I resend. My order for OLPC went in today -- they accept either PayPal or plastic -- Tom) Another thing I gleaned from the OLPC wiki is that it supports FORTH (start at http://wiki.laptop.org/go/Forth_Lesson_0). Karl (DJ4ZC) designed Phase-3A back in the late 1970's and the onboard computer (IHU) used the computer language that Karl wrote called IPS (Interpreter for Process Structures) based on FORTH, but with German syntax and multi-tasking real-time support. Several of us (W0PN, W1HDX, ZL1WN, DB2OS & I) ported the German "dialect" of IPS into English and the "Gerglish" IPS has served as the basis for running all the Phase-3 IHUs up thru AO-40 (thanks to the efforts of W4SM and G3RUH). IPS is also planned for P3-E (N4HY already has it running on the new IHU) and probably P5. As another possible AMSAT/OLPC synergy, I can easily envision the OLPC Forth kernel being adapted to real-time control tasks with the addition of Karl's "chain". Although it is really modest compared to the normal laptop, Nick Negroponte and his team has really come up with a platform that has amazing possibilities! Meanwhile, ASUS has introduced their commercial Linux-based "Eee" miniature notebook that is already available ($399 from Amazon <http://www.google.com/pagead/iclk?sa=l&ai=BuJiyAGg3R9XlK4iaeuyDjLIMqprePM7t…>) -- Just Google ASUS Eee <http://www.google.com/search?q=Asus+Eee&sourceid=navclient-ff&ie=UTF-8&rlz=…> or see the Eee wiki entry <http://en.wikipedia.org/wiki/ASUS_Eee_PC#Storage> for details. 73, Tom

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FS: Kenwood TS-790A + IFD board + TNC31S
by Francisco Costa, CT1EAT 19 Jan '08

19 Jan '08

Dear AMSAT friends My pacsat station is for sale: Kenwood TS-790A 144/432/1200 MHz transciever ============================================ with the following extras: * UT-10 1200 MHz module * Symek IFD-B board (for speed up to 76000 bd) and mods: * extended rx (on 3 bands) * 9600 baud tx/rx * 100ms mute disabled * IFD-B board (38400 baud rx) plus: * Hand microphone * DC cable * Instruction Manual (in english) include schematics * External Control Instruction Manual (in english) * Modifications documentation (in english) All mods were performed by me and no holes were done. This equipment was bought new (1997), and until now there was not a single problem! It was kept on a non smoking environment. Cosmetic is a 8/10 (one minor dent, sort of paint bubble and 4 rotator control box feet "stain", all on top cover) Unfortunatly I don't have the original box anymore. Sorry TNC Symek TNC31S ================ * Tx 9600/Rx 38400 baud card * 128kb RAM * 512kb Flash-EPROM * English mailbox * Kiss autostart including: * RS232 cable plus adapter (DB9) * DC cable * Diskette with software * Original Manuals (english and german) This TNC was bought new (2000), and was used on UO-36 and Tiungsat-1 with great sucess. I did't use it since a long time ago, but I belive it's 100% operational. Cosmetic is 9/10. I will only sale the 2 items together. Price: 1500 Euro Buyer pays shipping. Payment methods: Euro countries: Bank money transfer only! Elsewhere: Western Union or PayPal. Photos: please visit http://ct1eatsale.no.sapo.pt/ Thanks for your attention. See you on P3E or Eagle. 73 F.Costa, CT1EAT www.qsl.net/ct1eat

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Activacion CX1AA via Satelites
by CE3SOC Raul Romero 30 Nov '07

30 Nov '07

mas info aqui http://www.zona12.cl/avisos/veraviso.php?cat=95&de=1555 saludos Raul CA3SOC --------------------------------------------------------------------- "Are you still wasting your time with spam?... There is a solution!" Protected by GIANT Company's Spam Inspector The most powerful anti-spam software available. http://mail.spaminspector.com ----- Original Message ----- From: Juan Carlos To: LUSAT-1(a)gruposyahoo.com.ar Sent: Tuesday, November 27, 2007 4:00 PM Subject: [LUSAT-1] ENTREVISTAS DE RADIOAFICION Hola a todos: En el programa de hoy tenemos una entrevista con Diego Salom LU8ADX radioaficionado argentino, responsable del boletín de dx en castellano. Después EA3RE Toni, nos comentara las palabras tecnicas oidas en la entrevista y que podremos añadir al DICCIONARIO DE LA RADIOAFICION. El programa ENTREVISTAS DE RADIOAFICION no se hace responsable de las opiniones de sus entrevistados. Para escuchar, bajar y/o ver estos archivos, esta la siguiente direccion: http://radioaficion.podomatic.com ENTREVISTAS DE RADIOAFICION esta en podcast. Hemos puesto un enlace para la sindicacion de contenidos de podcast http://radioaficion.podomatic.com/rr2.xml Si acaso es de vuestro interes ver donde esta situada la pagina, es la siguiente http://radioaficion.podomatic.com donde os podeis suscribir y mandar un email a radioaficion(a)podomatic.com para recibir informacion de la emision de los programas. Hemos subido un video en esta dirección que trata sobre COMO HACER UN DIPOLO. Una explicación llevada paso a paso y que nos permitirá aprender con imágenes, algo tan sencillo como elemental. Esta pensado para los que empiezan en nuestra aficion. Lo podéis ver, oir o bajar a partir de ahora en http://radioaficion.podomatic.com Como siempre gracias y hasta la proxima semana ENTREVISTAS DE RADIOAFICION CUARTO DE CHISPAS Juan Carlos Montalvo ea2aov(a)gmail.com ¿Quieres recibir todas las semanas el enlace en tu ordenador para oir, ver y/o bajar directamente estos programas, subscribete en la siguiente direccion: http://www.egrupos.net/grupo/entrevistasea2aov/alta __._,_.___ Mensajes con este tema (0) Responder (mediante la Web) | Crear un tema nuevo Mensajes | Archivos | Fotos | Marcadores | Base de datos | Agenda GRUPO LU-ESCUELAS LA RADIO UN CAMINO SEGURO Y SIN PELIGROS http://www.lu-escuelas.com.ar/ ------------------------------------------------------------- *** ¿¿¿ENTRASTE AL MERCADO DE PULGAS HOY??? *** http://www.lusat.com.ar/mercado ------------------------------------------------------------- Modificar la configuración mediante la Web (ID de Yahoo! obligatoria) Modificar la configuración mediante el correo: Cambiar a resumen diario | Cambiar el formato a Tradicional Visita tu grupo | Condiciones de uso de Yahoo! Grupos | Cancelar suscripción Actividad reciente a.. 2Miembros nuevos Visita tu grupo Y! Respuestas Pregunt?/a> Gente real te responde Yahoo! Messenger Mensajero perfecto Llam?de PC a PC sin costo alguno Barra Yahoo! Todo a un toque Acceso rápido a servicios Yahoo! . __,_._,___

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hamfest/demo tomorrow (1 December)
by Patrick STODDARD (WD9EWK/VA7EWK) 30 Nov '07

30 Nov '07

Hi! I will be part of the AMSAT table at the Superstition Amateur Radio Club's hamfest in Mesa, Arizona, tomorrow morning. The hamfest is at Mesa Community College, on Dobson Road between Southern Avenue and the US-60 freeway (exit 177). The club has a web page with hamfest info at: http://wb7tjd.org/hamfest/ I will be doing AO-51 demonstrations during the 1515 and 1649 UTC passes from the hamfest as WD9EWK, weather permitting. It is currently (Friday at 2020 UTC) raining here, and there is a chance for rain tomorrow morning. Unless the hamfest site turns into a swamp and/or there is lightning in the sky tomorrow morning, I hope to be on for both of those passes. 73! Patrick WD9EWK/VA7EWK http://www.wd9ewk.net/

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Re: [eu-amsat] Satellite DX
by John W Lee 30 Nov '07

30 Nov '07

Speaking of satellite DX, I don't know if I've seen a messge about this or not. There is a group of folks down at XF4 Revilla Gigedo for at least a week now. XF4YW (XE2YW) has been on the FM birds from time to time. They will be there for several more days. That would be grid DK48 off the west coast of Mexico. 73, John K6YK

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Re: Satellite Rigs, whats available
by Reicher, James 30 Nov '07

30 Nov '07

I'd recommend the Yaesu FT-847 over the Icom for these reasons: 1. The 847 has 160M thru 70cm in one box. This means that when AO7 comes up in mode A, you don't have to use a separate rig for the 10M downlink. You'll have all the other bands as well, 160, 80, 60, 40, 30, 20, 17, 15, 12, 10, & 6 meters, as well as 2 meters and 70cm 2. The 847, which is out of production, can be had for much less money than an IC910. I got mine for about $850. I typically see 910's selling used, without the 1.2GHz option, for about $1,000. 3. You can more easily find and install a different mike on an 847, since they don't require a special type of mike. 4. The IC910s I've dealt with tend to develop a situation where the displayed frequency does not match the actual frequency. 2 meters is usually about 3 KHz off while 70cm gets about 9 KHz off. This can get nasty to use for someone who's not familiar with the rig. 5. CAT control of the rig is as simple as running a null-modem cable from the back of the rig to a serial port on your computer. The 910H requires a CTV or whatever they call it to interface to your computer. 6. While it doesn't have a 1.2GHz option, you can still use a transverter, which tends to be much less expensive than the Icom 1.2GHz optional unit. 7. It is also packet-ready, as well as all the other digital modes. 8. DSP filtering is built-in and comes standard. 9. Less menu driven than the Icom unit. In short, the 847 is more versatile, easier to interface with the rest of your station, and less expensive than the Icom. 73 de W0HV, Jim in Raymore, MO (ex-N8AU) Light travels faster than sound... This is why some people appear bright until you hear them speak. Date: Fri, 30 Nov 2007 10:03:50 -0600 (GMT-06:00) From: George Henry <ka3hsw(a)earthlink.net> Subject: [amsat-bb] Re: Satellite Rigs, whats available To: amsat-bb(a)amsat.org Message-ID: <25485375.1196438630891.JavaMail.root(a)elwamui-sweet.atl.sa.earthlink.net > Content-Type: text/plain; charset=UTF-8 Other than my old Drake B-line twins with the 2-meter transmit and receive converters (think RS-10/11, RS-12/13, and RS-15), I have only used the Icom IC-275/475H combo and the 910H. After borrowing a 910 for Field Day one year, I immediately went out and bought my own. I didn't even look at anything else, and I love it. Sensitive RX, plenty of TX power when needed, 1.2 GHz with the optional UX-910, easy to interface to the computer, 9600 packet-ready, and great for terrestrial work as well. I have the DSP and high-stability options in mine, as well. George, KA3HSW -----Original Message----- >From: MM <ka1rrw(a)yahoo.com> >Sent: Nov 30, 2007 7:33 AM >To: Amsat-BB bb <amsat-bb(a)amsat.org> >Subject: [amsat-bb] Satellite Rigs, whats available > >Satellite Rigs, what?s available > >I am planning on building a new satellite club station >for an organization. I am now putting together a bid >for the club satiaton. The only glitch is what radio >to use. >The primary usage for this satellite club station will >be FM Satellites and Leo?s. >I would prefer to use a dedicated Satellite Rig and >not a HF rig with 2 meters and 440 stuffed in. >I have used the Icom-910 and the legendary Yaseu >FT-736R. The Yaseu FT-736R has been out of production >for many years, however I am seriously considering buy >a few for the club station on the used market. The >built in FM center tuning meter and the Normal and >Narrow FM filers make it ideal for this type of setup. > >So what is out that that?s new? > >Thanks, Miles wf1f > > >PS, ISS was back on Packet last night 145.825 >simplex. ------------------------------ _______________________________________________ Sent via amsat-bb(a)amsat.org. Opinions expressed are those of the author. Not an AMSAT member? Join now to support the amateur satellite program! http://amsat.org/mailman/listinfo/amsat-bb End of AMSAT-BB Digest, Vol 2, Issue 750 ****************************************

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Tracking the A/N Football Run now underway!
by Robert Bruninga 30 Nov '07

30 Nov '07

!The Naval Academy game ball is underway for Baltimore! ! !The live APRS tracking of the runners with the game ball !can be viewed on the USNA Radio Club's W3ADO web page !For the next 24 hours: ! !http://www.ew.usna.edu/~bruninga/fball2007.html ! !Check the route and on your way home, drive by and !give them the wave! ! !If you forget the web page, Google can usually find !" USNA football run".. But be sure to select the !2007 run and not the many previous ones. ! !Enjoy! !Bob Bruninga !USNA Satellite Lab x36417

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FW: Re: Re: [eu-amsat] Satellite DX
by w7lrd＠comcast.net 30 Nov '07

30 Nov '07

-------------- Forwarded Message: -------------- From: w7lrd(a)comcast.net To: archie.hackett(a)hotmail.com Cc: ansat-bb(a)amsat.org Subject: Re: [amsat-bb] Re: [eu-amsat] Satellite DX Date: Fri, 30 Nov 2007 17:43:12 +0000 HEllo I believe it is true that many countries do not allow operation near 432. I have also heard it is questionable here in the USA. While in mode A (AO7) I have made several attempts to shake loose a JA or some northern UK gent where I have a very short window at times, even a piece of Europe for some footprint streaching fun. In the days of RS15 I was able to do this fairly regularly and had many sub 4 degree QSO's to the other side of the footprint. It takes good and quick operation and a competent guy at the other end. My opinion is," if this were easy, everyone would be doing it". Generally speaking we all love a challange, at least that's what keeps my passion for amateur radio alive. I have a fantastic mentor in Joe K0VTY as well a Clair VE3NPC both of whom have forgot more that I can ever learn. There's Central and northern South america of which I have hever hear a peep out of. I had a new aquantnce in the shack yesterday who was considering satellites. AO7 (mode A) came up through the mid west and I had a nice chat with Joe K3SZH ( who I think probably owes the bird hihi). This visitor just lite up , like the perverbial bug latched on. Can we get a front page blurb in QST on the assets of AO7? This is what got me going back in the days of RS10 and 12/13. When I'm on the HF bands at times I will "steer" the converation to satellies and attempt to simplify this "complex" mode that many believe it is. It is incumbenton all of us to "push" this fantastic method. 73 Bob W7LRD Seattle -------------- Original message -------------- From: John Hackett <archie.hackett(a)hotmail.com> > > Gents, > > I suggest each and every one of us sends the relavant mail to every national > society requesting it be published in their magazine/newsletter to attempt to > generate satellite interest in the countries where there is coverage but no > operation. > > There are several countries where a potential newcomer could "rake-in" the > satellite certificates quicker than you can say "AO-7 is a damned good satellite > when it's used properly". > > Again, I've batted this over to the States in case they suffer from the same > kind of inactivity in some of the states. > > Let's educate! a few new operators ... not blind 'em with science. > > 73 John. > > To: eu-amsat(a)yahoogroups.com > From: sv1bsx(a)yahoo.gr > Date: Fri, 30 Nov 2007 12:30:24 +0200 > Subject: Re: [eu-amsat] Satellite DX > > > > > > > > > > > > > > > > > > > > > > > > Good morning John & Group, > > you have absolutely right about DXing and AO-7. My > location is a mere example, it's in very good position for orbits over West > & Middle Asia. Africa too. > > However, the Satellite traffic above these areas is very > poor. > > Except of some former Soviet-Union countries (but > just a few), the rest Asia is like a Ham-desert. I have sent several times > Emails, for example to Indian hams requesting a > sked in order to make a contact with VU. Nothing at all ! And &a mp;a mp;a mp;a mp;g t; ; keep in mind, VU-land is a new-one for me on > Satellites - but "NO luck" ! (..and my surspise is big enough especially with > VU, as this country has in orbit a HAM Satellite - see VO-52)! > > > I don't know if the Afganistan & > Pakistan have anyone active on Sats. I don't think so. Also the Middle > East, just a few peoples they are active, I remember > the 4X & OD-lands. > > Africa? he he.... here is the real desert > ! TR8CA was active, but he is not anylonger. ZS-land has several peoples, > but never I heard somebody on AO-7. And it's a real DX > that for me, over 7000 Km ! > > Therefore, I agree with your comment however I'm > thinking: > > "too much DXCC entities but.... just a few peoples" !!! > > > Ironically, the 1/4 of planet seems to be without > population ! > > > Q: c ould be th e EU- AmS at Group the campaign leader (with > Emails etc), in order to activate some peoples from these countries on AO-7 > ? > > It's a good challenge, I think. > > Have a nice day > > 73 de Mak, SV1BSX > > > > > > > ----- Original Message ----- > From: > John Hackett > To: Eu-amsat(a)yahoogroups.com > Cc: amsat-bb(a)amsat.org > Sent: Friday, November 30, 2007 > 09:29 > Subject: [eu-amsat] Satellite DX > > Stop whinging! ... > > No DX you say ... have a look at the > AO-7 orbit 51201 on Friday the 30th of November 2007 from 05:55 to > 06:00. > > > > This orbit covered more sixty !!! entities (DXCC > countries) including northeast China, Mongolia, northern India, > Pakistan, Afghanistan, > all 18 of the earlier Soviet republics , the entir e > E urop ean continent, the entire Middle East and most of the central and north > African countries. > > > > No DX? ... Rubbish !!!. > > I battet this > over to the Amsat-bb so our American friends can see what "can" be worked from > Europe. > > I'm sure certain orbits would allow most of the states and > even parts of central America on some orbit (?) ... I'm just too bone-idle to > check it out. > > > > 73 John. > > > > > > > > > > > avast! Antivirus: Outbound message clean. > Virus Database (VPS): 071127-0, 11/27/2007 > Tested on: 11/30/2007 12:30:28 > avast! - copyright (c) 1988-2007 ALWIL Software. > > > > > > > > > > __._,_.___ > > > &g t; > Message s in this topic (0) > > > > Reply (via web post) > | > > Start a new topic > > > > > Messages > | Files > | Photos > | Links > | Database > | Polls > | Members > | Calendar > > > > > > > > > > > > > Change settings via the Web (Yahoo! ID required) > > Change settings via email: Switch delivery to Daily Digest | Switch format > to Traditional > > > > Visit Your Group > | > > Yahoo! Groups Terms of Use | > > Unsubscribe > > > > > > > > > > > > Recent Activity > > > 2 > New Members > > > > > > > ; 1 > ; New Files > > > > > > Visit Your Group > > > > > > Yahoo! Groups > Real Food Group > Share recipes > and favorite meals. > > 10 pairs of tickets > a day from Yahoo! > Fly home for the > Holidays for free. > > Official Samsung > Yahoo! Group for > supporting your > HDTVs and devices. > > > > . > > > > __,_._,___ > > > > > > > > > > > > > > > > _______________________________________________ > Sent via AMSAT-BB(a)amsat.org. Opinions expressed are those of the author. > Not an AMSAT-NA member? Join now to support the amateur satellite program! > Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb

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Need Daiwa CN-520
by Anthony Japha 30 Nov '07

30 Nov '07

Greetings, Anyone have a Daiwa CN-520 SWR meter they'd be willing to sell? It's the small (2 3/4' square) meter for HF with no controls on the front and 200 watt and 2000 watt scales. I'd like to build it into a tuner. Tnx and 73, Tony, N2UN

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Ofcom Announce Olympic Radio Spectrum Consultation
by Trevor 30 Nov '07

30 Nov '07

Interesting to see they are considering 60 GHz for Video links. Lets hope were possible they make use of these in preference to some frequencies lower down the spectrum. http://www.southgatearc.org/news/november2007/olympic_radio_spectrum_consul… Those in range of the European SKY satellite TV system may be interested in this program: Hubble Telescope - Satellite Night BBC 4 Sunday http://www.southgatearc.org/news/november2007/hubble_telescope.htm 73 Trevor M5AKA --------------- Daily Amateur Radio RSS News: http://www.southgatearc.org/ Email your news items to: editor at southgatearc.org News On Your Website: http://www.southgatearc.org/rss/index.htm News On Your PC: http://www.southgatearc.org/rss/newsreader.htm Upload Your News: http://www.southgatearc.org/news/your_news.htm --------------- __________________________________________________________ Sent from Yahoo! - the World's favourite mail http://uk.mail.yahoo.com

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Re: [eu-amsat] Satellite DX
by John Hackett 30 Nov '07

30 Nov '07

Gents, I suggest each and every one of us sends the relavant mail to every national society requesting it be published in their magazine/newsletter to attempt to generate satellite interest in the countries where there is coverage but no operation. There are several countries where a potential newcomer could "rake-in" the satellite certificates quicker than you can say "AO-7 is a damned good satellite when it's used properly". Again, I've batted this over to the States in case they suffer from the same kind of inactivity in some of the states. Let's educate! a few new operators ... not blind 'em with science. 73 John. <la2qaa(a)amsat.org> To: eu-amsat(a)yahoogroups.com From: sv1bsx(a)yahoo.gr Date: Fri, 30 Nov 2007 12:30:24 +0200 Subject: Re: [eu-amsat] Satellite DX Good morning John & Group, you have absolutely right about DXing and AO-7. My location is a mere example, it's in very good position for orbits over West & Middle Asia. Africa too. However, the Satellite traffic above these areas is very poor. Except of some former Soviet-Union countries (but just a few), the rest Asia is like a Ham-desert. I have sent several times Emails, for example to Indian hams requesting a sked in order to make a contact with VU. Nothing at all ! And keep in mind, VU-land is a new-one for me on Satellites - but "NO luck" ! (..and my surspise is big enough especially with VU, as this country has in orbit a HAM Satellite - see VO-52)! I don't know if the Afganistan & Pakistan have anyone active on Sats. I don't think so. Also the Middle East, just a few peoples they are active, I remember the 4X & OD-lands. Africa? he he.... here is the real desert ! TR8CA was active, but he is not anylonger. ZS-land has several peoples, but never I heard somebody on AO-7. And it's a real DX that for me, over 7000 Km ! Therefore, I agree with your comment however I'm thinking: "too much DXCC entities but.... just a few peoples" !!! Ironically, the 1/4 of planet seems to be without population ! Q: could be the EU-AmSat Group the campaign leader (with Emails etc), in order to activate some peoples from these countries on AO-7 ? It's a good challenge, I think. Have a nice day 73 de Mak, SV1BSX ----- Original Message ----- From: John Hackett To: Eu-amsat(a)yahoogroups.com Cc: amsat-bb(a)amsat.org Sent: Friday, November 30, 2007 09:29 Subject: [eu-amsat] Satellite DX Stop whinging! ... No DX you say ... have a look at the AO-7 orbit 51201 on Friday the 30th of November 2007 from 05:55 to 06:00. This orbit covered more sixty !!! entities (DXCC countries) including northeast China, Mongolia, northern India, Pakistan, Afghanistan, all 18 of the earlier Soviet republics, the entire European continent, the entire Middle East and most of the central and north African countries. No DX? ... Rubbish !!!. I battet this over to the Amsat-bb so our American friends can see what "can" be worked from Europe. I'm sure certain orbits would allow most of the states and even parts of central America on some orbit (?) ... I'm just too bone-idle to check it out. 73 John. <la2qaa(a)amsat.org> avast! Antivirus: Outbound message clean. Virus Database (VPS): 071127-0, 11/27/2007 Tested on: 11/30/2007 12:30:28 avast! - copyright (c) 1988-2007 ALWIL Software. __._,_.___ Messages in this topic (0) Reply (via web post) | Start a new topic Messages | Files | Photos | Links | Database | Polls | Members | Calendar Change settings via the Web (Yahoo! ID required) Change settings via email: Switch delivery to Daily Digest | Switch format to Traditional Visit Your Group | Yahoo! Groups Terms of Use | Unsubscribe Recent Activity 2 New Members 1 New Files Visit Your Group Yahoo! Groups Real Food Group Share recipes and favorite meals. 10 pairs of tickets a day from Yahoo! Fly home for the Holidays for free. Official Samsung Yahoo! Group for supporting your HDTVs and devices. . __,_._,___

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AO-7 Report.
by John Hackett 30 Nov '07

30 Nov '07

I wonder how many people make the mistake of thinking AO-7 is not transmitting (when it is) but the receiving equipment isn't adequate. An illustration ... on orbit 51203 at 09:32 this morning, 30-11-07 at the start of the orbit I heard nothing at all ... absolutely nothing! from AO-7. However, switching the polarisation of my aerials to vertical (from horizontal) resulted in a received signal of S3 ... and as the orbit progressed, the signal strength incread and the polarisation changed another two times on that particular orbit. Remember !!! ... the propagation to all intents and purposes is different at various QTH's ... so the result at one QTH - (for instance, signal report) - is highly likely to be quite different at another QTH. I would advise using your EARS !!! as a reference because meters are a complete waste of time in this particular situation/application. I would thoroughly recommend switchable polarisation for LEO's. It doesn't have to be commercial and expensive. Mine doesn't even use coaxial relays - and it's built into an aluminium lunchbox ... don't laugh!, they're cheap and RF tight. There's a full explanation on OBSERVATIONS ... (http://www.observations.biz) of why I don't bother with circular polarisation on LEO satellites. 73 John. <la2qaa(a)amsat.org>

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Re: Terrestrial repeater interference to AO-27
by John W Lee 30 Nov '07

30 Nov '07

What I've been hearing on AO-27 sounds like simplex chatter. No squelch tail, etc. Unless we are hearing the input side of a repeater (the users). They seem to show up just about every day in the afternoon, and I can never understand the callsigns when they give them. 73 John K6YK On Thu, 29 Nov 2007 15:42:26 -0800 (PST) Bob Stewart <bob(a)evoria.net> writes: > I heard some random non-sat related chatter recently on AO-27, > as well as some odd blocking on SO-50. I haven't gone back in > monitor mode, though. If it starts to be a big problem again, > I suppose can start recording the "good" pass on AO-27 like > last time. Good point about CTCSS, Drew. > > Bob - AE6RV > > --- Andrew Glasbrenner <glasbrenner(a)mindspring.com> wrote: > > > I talked to one of the control ops via Echolink a few weeks ago > and he said > > it had been moved. I can't verify it. It was a simplex echolink > link into a > > repeater. There were actually two of them, one on 145.850, and the > other on > > 145.925. > > > > I didn't know anyone else was working on this. Had he not said > they had been > > moved Riley was going to be my next call! Thanks for your > efforts. > > > > This sort of thing is one of the reasons we shouldn't use CTCSS on > satellite > > uplinks unless we have to.... > > > > 73, Drew KO4MA > > > > ----- Original Message ----- > > From: "George Henry" <ka3hsw(a)earthlink.net> > > To: <amsat-bb(a)amsat.org> > > Sent: Thursday, November 29, 2007 4:59 PM > > Subject: [amsat-bb] Terrestrial repeater interference to AO-27 > > > > > > > Has anyone heard that rogue repeater thru AO-27 recently? I > received a > > > phone call from Riley this afternoon, following up on my > complaint about > > > the repeater, and he wanted to know if it was still on the air. > It is > > > located too far from my home QTH to hear directly, and my > satellite > > > antennas are down at the moment. The one time I *did* hear it > on the > > > ground (early October), I was out mobile and much closer to it > than when I > > > am at home, but I haven't been up that way (northern suburbs of > Chicago) > > > for quite a while. > > > > > > George, KA3HSW > > > _______________________________________________ > > > Sent via AMSAT-BB(a)amsat.org. Opinions expressed are those of the > author. > > > Not an AMSAT-NA member? Join now to support the amateur > satellite program! > > > Subscription settings: > http://amsat.org/mailman/listinfo/amsat-bb > > > > _______________________________________________ > > Sent via AMSAT-BB(a)amsat.org. Opinions expressed are those of the > author. > > Not an AMSAT-NA member? Join now to support the amateur satellite > program! > > Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb > > > > _______________________________________________ > Sent via AMSAT-BB(a)amsat.org. Opinions expressed are those of the > author. > Not an AMSAT-NA member? Join now to support the amateur satellite > program! > Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb > >

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Symbian prediction software
by John Hackett 30 Nov '07

30 Nov '07

To whom it may concern, A portable satellite station can be as small and simple as a dual-mode handheld plus a 3/4 wave whip - (AO-51). It isn't always convenient to lug a laptop around but almost everybody carries a mobile phone in their pocket. Pass prediction programs are available for Windows mobile and certain PDA devices but none - (that I can assertain) - for the Symbian series 60 operating system ... of which there are a*LOT*. Now, if you happen to be a"wapper" - (pun intentional) - you can get online predictions from the internet - but it's an inconvenient and "finnicky" way of doing things. Is there anyone out there capabable of writing a pass prediction program for the Symbian series 60 mobile phone operating system?. (NB - not everybody has the "latest" phone, that's why the Series 60 would be the best option for a Symbian system). The program doesn't need to have fancy graphics and logos, those are just a waste of space - (again, pun intentional) - a simple prediction table would suffice - showing date, time azimuth, elevation and range. The other criteria are not necessary when you're operating portable. I did suggest this to Emily N1DID a couple of year ago but nothing came of it. If anyone is capable - (and willing) - to write such a program I would be *MOST* interested. Surely it's cheaper to write a Symbian program than to buy a new phone that uses existing software ... like the Predict program on Windows mobile ?. Anyone willing to take up the challenge? ... (to save me purchasing a new phone). 73 John. <la2qaa(a)amsat.org>

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Satellite DX
by John Hackett 30 Nov '07

30 Nov '07

Stop whinging! ... No DX you say ... have a look at the AO-7 orbit 51201 on Friday the 30th of November 2007 from 05:55 to 06:00. This orbit covered more sixty !!! entities (DXCC countries) including northeast China, Mongolia, northern India, Pakistan, Afghanistan, all 18 of the earlier Soviet republics, the entire European continent, the entire Middle East and most of the central and north African countries. No DX? ... Rubbish !!!. I battet this over to the Amsat-bb so our American friends can see what "can" be worked from Europe. I'm sure certain orbits would allow most of the states and even parts of central America on some orbit (?) ... I'm just too bone-idle to check it out. 73 John. <la2qaa(a)amsat.org>

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Terrestrial repeater interference to AO-27
by George Henry 30 Nov '07

30 Nov '07

Has anyone heard that rogue repeater thru AO-27 recently? I received a phone call from Riley this afternoon, following up on my complaint about the repeater, and he wanted to know if it was still on the air. It is located too far from my home QTH to hear directly, and my satellite antennas are down at the moment. The one time I *did* hear it on the ground (early October), I was out mobile and much closer to it than when I am at home, but I haven't been up that way (northern suburbs of Chicago) for quite a while. George, KA3HSW

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Re: Just worked AO51 with my new Arrow
by John Marranca, Jr 30 Nov '07

30 Nov '07

Ed: Fantastic! You know...I have an RCA digital recorder and I STILL forget to turn the bloody thing on! Nevertheless, congratulations! -- _______________________________ John Marranca, Jr PBX Technician/Shop Steward CWA Local 1122 BN Systems, Inc Orchard Park, NY (716)972-2006

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Just worked AO51 with my new Arrow
by Ed Tump 30 Nov '07

30 Nov '07

Folks, I just got my Arrow sat antenna this afternoon and put it together. Very nice product and easy to assemble. I mounted it on a tripod and checked Orbitron. With the Packer game coming up I thought I would just leave it in the den where I put it together. I thought hey, tomorrow I can try it out. But Orbitron told me that the pass for AO-51 was coming over soon. I thought this thing will never work inside and in the den. But that Arrow sure did work. I was so excited and happy I did not even hook up the tape recorder. So I did make my second satellite contact, the first with AO-51, and the first with my Arrow. I believe I made contact with grid FN42. Could not remember call sign. If anyone heard any of the details I would love to know. Thanks! 73, Ed KC9GWK Grid EN52 AmSat Member

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Instanttrack Altitude?
by Robert Bruninga 28 Nov '07

28 Nov '07

Looking at the latest re-entry plot, why does Instantrack show an altitude that is 10km below the official prediction? This is using an EPOC TLE of 26 November, Instantrack shows 239.5 km Avaerage altitude. What do other programs show? http://www.ew.usna.edu/~bruninga/ande-ops.html Bob > -----Original Message----- > From: aprssig-bounces(a)lists.tapr.org > [mailto:aprssig-bounces@lists.tapr.org] On Behalf Of Robert Bruninga > Sent: Tuesday, November 27, 2007 1:09 PM > To: aprssig(a)lists.tapr.org > Subject: [aprssig] ANDE -APRS Re-Entry Campaign > > ANDE-APRS Re-Entry Campaign: > > The ANDE-MAA satellite (Nav Oscar - 61) will de-orbit in the > next few weeks but is fully operational. We encourage activity, > because while it is in use (2m packet up/down), then it is awake > and sending telemetry. We want to capture the most telemetry to > see if we can catch the thermal changes as re-entry approaches. > > Who can capture the last telemetry frame? > > The most important telemetry is that which is fed live by IGate > into the APRS-IS system. Because that is automatically logged > and time stamped. > You can verify your data got in by looking at the > http://pcsat.aprs.org web page after each pass. > > If you manually capture any packets, Please take special care to > accurately LOG the TIME of any packets received especially in > the final day prior to re-entry. See the contest page below for > how to submit entries: > > Here is the ANDE Operations web page. It has links to live > telemetry too: > http://www.ew.usna.edu/~bruninga/ande-ops.html > > And this one is the CONTEST for data collection and operations > sponsored by PA3GUO and DK3WN: > http://www.ande-deorbit.com > > Any APRS station that is also on the internet can contribute > telemetry by simply QSY'ing their normal APRS rig receiver to > 145.825 on that final day. > > If you do not normally run APRS or an IGate, then you can simply > download ALOGGER.EXE which is a full up IGate designed just for > satelite gating without having to learn APRS. See Bill's web > page: > http://www.billdiaz.dynip.com/ASatLogger.htm > > ANDE is coming over the northern latitudes in the afternoons and > evenings local sun time, but this pattern moves earlier by 14 > minutes per day. > Just monitor 145.825 MHz. > > Enjoy! > Bob, WB4APR > > > > _______________________________________________ > aprssig mailing list > aprssig(a)lists.tapr.org > https://lists.tapr.org/cgi-bin/mailman/listinfo/aprssig >

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AMSAT Awards
by Bruce 28 Nov '07

28 Nov '07

Awards this week are: We would like to welcome the following to the satellite community. They have made their first satellite contact and are now members of the AMSAT Satellite Communicators Club. Richard Silva, WA6ES AMSAT Sexagesimal Award Juergen Pape, DF7WIN, #145 AMSAT W4AMI Satellite Operator Achievement Award Basic Chris Martin, KG7EZ, 2K, 3K, 4K endorsements AMSAT W4AMI Satellite Operator Achievement Award 5,000 Chris Martin, KG7EZ, #20 To see all the awards visit http://www.amsat.org or http://www.amsatnet.com Bruce Paige, KK5DO AMSAT Director Contests and Awards ARRL Awards Manager (WAS, 5BWAS, VUCC), VE Houston AMSAT Net - Wed 0100z on W0KIE Also streaming MP3 at http://www.amsatnet.com

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Satellites at the Peace Conference
by Robert Bruninga 28 Nov '07

28 Nov '07

For the Peace Conference, the Academy was cordoned off, students prohibited from going on that side of the Yard, and photos of the proceedings were prohibited. The Academy was locked down the whole day, including all WEB page servers. To see the Satellite Technology, however, I put together this web page for the students in our Satellite Labs: http://www.ew.usna.edu/~bruninga/PressStuff.html WB4APR

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How to receive OSCAR telemetry and setup APRS system
by Hamradio .9m 28 Nov '07

28 Nov '07

Dear all, I've been struggling with packet satellite since day one and I have two questions pertaining my Amateur Satellite Ground Station. 1. I'm new to MixW and very interested to know more about MixW configuration to receive Packet Satellite telemetry specifics for OSCAR. I have bought one complete package which included MixW software, RigExpert plus and interface cable. Unfortunately, till today I can't even decode any OSCAR telemetry either by using RigExpert or TNC. 2. My next question is how to operate my station as APRS? I'm be able to receive somthing from ARISS but the signal is not digipeated. The data as follow; > 9W2NRL/ISS>CQ>UI,C,F0: > HELLO FROM 9W2NRL > RS0ISS-4/SGATE>CQ>UI,R,F0 (1199 baud): > >ARISS - International Space Station (BBS/APRS on) How do I verify the packet is really transmitted on air? My station is equipped with X-Yagi Antenna, UHF Preamp, IC-921, FT-817 and KAM-XL. In the software part, I used GSC and WxTrack for tracking and MixW. A million thanks for your suggestion and guidance. -- 73 Nuril 9W2NRL

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Re: Weather Effect
by John Marranca, Jr 28 Nov '07

28 Nov '07

How old is your coax? John KB2HSH -- _______________________________ John Marranca, Jr PBX Technician/Shop Steward CWA Local 1122 BN Systems, Inc Orchard Park, NY (716)972-2006

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LUSAT-OSCAR 19 beacon
by Rob Hardenberg PE1ITR 28 Nov '07

28 Nov '07

Hello, Today I was monitoring the LO-19 cw beacon on 437.125 and noticed that there is always a small signal present between the cw telemetry blocks. The beacon transmit about 750mW. The small signal is about 30db down, so I guess it must be around 1mW. Does anybody have some more info (power?) about this unsupressed carrier signal? 73 Rob PE1ITR

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