May 2008 - AMSAT-BB - mailman.amsat.org

SEEDS SSTV
by Robert Turlington 03 May '08

03 May '08

Hi All I have updated my web site to include SEEDS SSTV taken early on this afternoon www.turlington.supanet.com Regards Robert G8ATE _________________________________________________________________ All new Live Search at Live.com http://clk.atdmt.com/UKM/go/msnnkmgl0010000006ukm/direct/01/

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Computer Controll for old Yaesu Rotators
by Tony 03 May '08

03 May '08

All, I have an old Yaesu G-500A elevation rotator mated to a Yaesu G-800SDX and would like to use computer controll for both. They each have their own controller, but they do not have buit-in computer controll boards. Idiom ( http://www.idiompress.com/rotorcard.html ) makes a board for the G-800SDX, but I can't find anything for the G-500A. What would be the best inteface / boads to use with this set-up? The Yaesu GS-232 interface is a bit pricy and was wondering about an alternative. I use NOVA software for tracking. Thanks, Tony -K2MO

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Time delay?.
by John Hackett 03 May '08

03 May '08

Interestingly, today, the AMSAT main page proclaims the AO-51 schedule from 31 March to the 30th of April. Err ... Gents ... in Europe today is the second of May. 73 John.

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C3 heard at km17vx at 3-5-2008 8:45 utc
by Kostas Ioannidis 03 May '08

03 May '08

C3 heard at km17vx at 3-5-2008 8:45 utc sending tlm at 145.930MHz. Packets uploaded to the server. 73 de sw1ixp

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C3 heard at km17vx at 2-5-2008 19:15 utc
by Kostas Ioannidis 03 May '08

03 May '08

C3 heard at km17vx at 2-5-2008 19:15 utc. C3 heard as it came out of eclipse sending tlm at 145.930MHz.The downlink a couple of times became erratic for 4-5 seconds and some packets were lost(the sound of the transmitter became "rough" and distorted) Packets uploaded to the server. 73 de sw1ixp

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Re: Delfi-C3 and SEEDS over West Malaysia
by Wouter Jan Ubbels 03 May '08

03 May '08

Hi Sion, I listened to the file, and it sounds fine. The only thing is that you were probably tuned slightly to high, giving a too low audio pitch (on USB mode that is) so that the carrier frequency is outside the capture range of RASCAL (1400-1800Hz). If you have a program that can make a waterfall display like spectran or MixW, you can try running that parallel to RASCAL and try centering the signal on 1600Hz, best is to do this during the transmission of AX.25 flags between the frames since these give discrete spectral lines spaced 150Hz and the strongest one is the carrier which should be around 1600Hz. RASCAL may sometimes gives false sync indications with strong signals since it then tries to lock onto one of the sidebands. hope that helps! 73 Wouter Jan Ubbels PE4WJ

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Delfi-C3 and SEEDS over West Malaysia
by Sion Chow Q. C. (9W2QC) 03 May '08

03 May '08

Dear All, Here are two morning passes over West Malaysia: 1. Delfi-C3, 145.930 Mhz, Tracking Object E at 1016 local or 0216 UTC Max Elevation: 39 degrees Comments: Unfortunately, RASCAL could not decode any packets during this pass. Not sure if it is due to my PC or some other matters. Wonder if the Delfi-C3 team could decode them? I wonder if the MP3 file will work? The full wave file is available on request. http://www.9w2qc.net/amsatbb/delfi03may1016.mp3 2. SEEDS, 437.485 MHz, Tracking Object J at 1154 local or 0354 UTC Max Elevation: 7 degrees Comments: Good copy for 7 degrees. Just wished I had another Yagi for simultaneous Cute-1.7 copy too. http://www.9w2qc.net/amsatbb/seeds03may1154.mp3 73, Sion Chow Q. C., 9W2QC.

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Delfi-3
by JA0CQP 03 May '08

03 May '08

Hi All, mk78hnj758,l, jhjn987mkn

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SEEDS digi-talker and SSTV heard
by Edward Chuang 03 May '08

03 May '08

Heard SEEDS digi-talker and SSTV this morning (2008-05-03) during 00:34 - 00:45 UTC. Not heard in the next pass. Signal was unstable, I'm trying to decode SSTV pic. 73 Edward / BX1AD -----

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How does Fox Delta Compare?
by David J 03 May '08

03 May '08

I was just looking at the Fox Delta model# ST3 automatic rotor control unit at www.foxdelta.com <http://www.foxdelta.com/> . Seems like a good unit. The price is good. Has anyone used this unit yet. Its pretty new. Doe anyone have an opinion of how it or older Fox Delta trackers compare to other units like the G6LVB tracker, Yaseu GS-232, etc. Dave, AA4KN

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