[amsat-bb] Re: VO-52 - OK to Work in FM?
- Original Message - From: Clint Bradford clintbradf...@mac.com To: AMSAT BB amsat-bb@amsat.org Sent: Saturday, June 12, 2010 3:41 AM Subject: [amsat-bb] VO-52 - OK to Work in FM? The Bengal ham club posted about five years ago instructions for working V)-52 in FM mode. Is that still OK to do? Clint, K6LCS Hi Clint, K6LCS It was only a crazy idea. Why to infect with the FM a good satellite with a linear transponder designed for CW and SSB when there are a lot of FM satellite specifically designed for FM ! 73 de i8CVS Domenico ___ Sent via amsat...@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
[amsat-bb] Re: HO-68 Schedule -13-20 June 2010
Hi Alan, BA1DU The HO-68 schedule- 13-20 June 2010 is very bad for South Europe because in the Mediterranean area only two orbits are useful with an elevation with no more than 45 degrees. 15 June 2010 19:05...Turn On and 19:50...Turn Off 17 June 2010 18:50...Turn On and 19:35...Turn Off All orbits overhead for Europe HO-68 is not scheduled and the transponder is Turned-Off Wery tired to make calculations every week for very small ! 73 de i8CVS Domenico ___ Sent via amsat...@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
[amsat-bb] Re: VO-52 - OK to Work in FM?
Hi Clint. Check out this page on the Amsat India web site http://www.amsatindia.org/payloads.htm Alex / VK5ALX ___ Sent via amsat...@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
[amsat-bb] Doppler.SQF
I need SO-67 HO-68 Doppler.sqf data. Can someone please advise same. ___ Sent via amsat...@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
[amsat-bb] Re: IKAROS Solar Sail Successfully Deployed
--- On Fri, 6/11/10, Reid Crowe reid.cr...@gmail.com wrote: From: Reid Crowe reid.cr...@gmail.com Subject: [amsat-bb] Re: IKAROS Solar Sail Successfully Deployed To: amsat-bb@amsat.org Received: Friday, June 11, 2010, 6:39 PM Is there anyway to track this? IKAROS is an interplanetary spacecraft: http://www.jspec.jaxa.jp/e/activity/ikaros.html so one would need very good telescope or access to something like NASA's Deep Space Network. snip 73s Bernhard VA6BMJ @ DO33FL ___ Sent via amsat...@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
[amsat-bb] Re: IKAROS Solar Sail Successfully Deployed
Hi Reid, you can try to listen on 8 GHz like it's done at Bochum and by some people from the Amateur DSN group with smaller dishes. http://www.amsat-dl.org/index.php/news-mainmenu-97/181-akatsuki-und-ikaros-in-bochum-empfangen http://www.uhf-satcom.com/amateurdsn/planetc/ 73s Peter On 12.06.2010 02:39, Reid Crowe wrote: Is there anyway to track this? On 6/11/2010 9:38 AM, B J wrote: http://www.jaxa.jp/press/2010/06/20100611_ikaros_e.html 73s Bernhard VA6BMJ @ DO33FL ___ Sent via amsat...@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...@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...@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
[amsat-bb] Re: VO-52 - OK to Work in FM?
I don't, and I think that VU says basicaly that it's ok if you haven't anything else - so why foul up the transponder or others by grabbing its power? I can see it MIGHT be acceptable if you were testing a rig. but not to treat as '51, IMHO. But AMSAT-VU will say for sure, it's their bird. 73 de andy G0SFJ ___ Sent via amsat...@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
[amsat-bb] elevation rotor 4 sale
I have a extra T-45 Alliance rotor. It is the 5 wire version on the U-110. Contact direct. A portion of the proceeds go to AMSAT. 73 Bob W7LRD ___ Sent via amsat...@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
[amsat-bb] Re: TS2000 on dualband antenna (for sat work)
yes work with disconne antenna and good LMR-400 or LMR-600 Raul CE3SOC - Original Message - From: John Geiger aa...@yahoo.com To: amsat-bb@amsat.org Sent: Wednesday, June 09, 2010 11:46 AM Subject: [amsat-bb] TS2000 on dualband antenna (for sat work) Has anyone on the list tried using a Kenwood TS2000 on full duplex satellite operatation using a dualband VHF/UHF antenna and a diplexer? Is it possible or is there too much desensitization thru the diplexer to make full duplex work? 73s John AA5JG ___ Sent via amsat...@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...@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
[amsat-bb] Re: IKAROS Solar Sail Successfully Deployed
It is headed to Venus (or there abouts) and it went out of range of my 8 ghz system the other day...pretty neat. Robert G. Oler Date: Fri, 11 Jun 2010 19:39:30 -0500 From: reid.cr...@gmail.com To: amsat-bb@amsat.org Subject: [amsat-bb] Re: IKAROS Solar Sail Successfully Deployed Is there anyway to track this? On 6/11/2010 9:38 AM, B J wrote: http://www.jaxa.jp/press/2010/06/20100611_ikaros_e.html 73s Bernhard VA6BMJ @ DO33FL ___ Sent via amsat...@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...@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 _ The New Busy think 9 to 5 is a cute idea. Combine multiple calendars with Hotmail. http://www.windowslive.com/campaign/thenewbusy?tile=multicalendarocid=PID28326::T:WLMTAGL:ON:WL:en-US:WM_HMP:042010_5 ___ Sent via amsat...@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
[amsat-bb] Re: VO-52 - OK to Work in FM?
Dear All, I agree with Dom about the crazy idea to infect the VO52 with the FM. '73 de iz8jhd eugenio Da: i8cvs domenico.i8...@tin.it A: Clint Bradford clintbradf...@mac.com; AMSAT BB amsat-bb@amsat.org Inviato: Sab 12 giugno 2010, 08:47:45 Oggetto: [amsat-bb] Re: VO-52 - OK to Work in FM? - Original Message - From: Clint Bradford clintbradf...@mac.com To: AMSAT BB amsat-bb@amsat.org Sent: Saturday, June 12, 2010 3:41 AM Subject: [amsat-bb] VO-52 - OK to Work in FM? The Bengal ham club posted about five years ago instructions for working V)-52 in FM mode. Is that still OK to do? Clint, K6LCS Hi Clint, K6LCS It was only a crazy idea. Why to infect with the FM a good satellite with a linear transponder designed for CW and SSB when there are a lot of FM satellite specifically designed for FM ! 73 de i8CVS Domenico ___ Sent via amsat...@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...@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
[amsat-bb] Re: VO-52
Message: 2 Date: Fri, 11 Jun 2010 18:41:37 -0700 From: Clint Bradford clintbradf...@mac.com Subject: [amsat-bb] VO-52 - OK to Work in FM? To: AMSAT BB amsat-bb@amsat.org Message-ID: 783B57E0-1B8C-4F72-A695-acd09e6ae...@mac.com Content-Type: text/plain; charset=us-ascii The Bengal ham club posted about five years ago instructions for working V)-52 in FM mode. Is that still OK to do? HAMSAT or VO-52 is a satellite intended for SSB/CW operation. However as in VU land very few of us can afford multimode VHF/UHF radios we are accessing Hamsat on FM for which it is best to stick to the centre frequencies (435.250 uplink and 145.900 downlink). It is also best to simultaneously monitor your own signals on the downlink using a separate radio. Hamsat requires around 100 watt ERP for solid 59 signals. So if you are using 10 watts RF the recommended antenna gain is around 10 db. However Hamsat or VO-52 have been accessed on high elevation passes using 25 watts ERP. If you want to use omni directional antennas you can build a turnstile or an eggbeater antenna which has a dome shaped radiation pattern with circular polarisation. Separate 10 element UHF and 5 element VHF crossed yagis with circular .polarisation would give excellent results. Only keep the transmission line loss (particularly on UHF) minimum. Use hardline CATV cable if transmission line is more than! 100 feet. Otherwise if you use RG-213 keep the feeder length to around 20 - 30 feet. I have been using a handheld arrow yagi antenna with RG-58U cable of around 1 meter length. Doppler compensation is needed particularly on the UHF uplink where the signal will shift a round 10 KHz. So for the uplink it is best to start from 435.240 MHz during AOS and end at 435.260 MHz at LOS and on the downlink start receiving 5 KHz up at 145.905 MHz and end at 145.895 MHz. Currently the VU transponder is on and it has a beacon (continuous carrier) on 145.936 MHz though we have not yet r eceived the beacon from Calcutta / Kolkata. Clint, K6LCS It is very exciting to work VO-52 in the CW mode. She is a strong bird and hears well. I work her often on only 2 watts CW and a 12 dbi gain vertical yagi on the uplink and 10d bi for the V down link and can hear her down to about 5 degrees on most passes. LOUIS, KD5GM CW, The original digital mode ___ Sent via amsat...@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
[amsat-bb] Re: Doppler.SQF
Pat, you can download the data from my website www.dk1tb.de, Englisch page Downloads, sect. 6 (Accy). 73s, Erich, DK1TB - Original Message - From: Pat McGrath ka6...@arrl.net To: amsat-bb@amsat.org Sent: Saturday, June 12, 2010 7:19 PM Subject: [amsat-bb] Doppler.SQF I need SO-67 HO-68 Doppler.sqf data. Can someone please advise same. ___ Sent via amsat...@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...@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
