Arissat-1 silent over UK: Explanation
As reported over the weekend, Arissat-1 is no longer audible in the UK, because she does not switch on until after about 14 minutes from entering sunlight. I believe the sequence is: enter sunlight: MET starts: timer activated 14 minute wait before tx - other systems live Tx on with data at a MET of 14 minutes Tx sequence We in the UK now have to wait unril the orbit continues to precess to the late evening (about 10 days' time) 73 de andy G0SFJ
Andy, the MET heard was 14 minutes after a voice message and a SSTV tx. First 5-6 minutes in the pass: no signals.
Claudio
-----Messaggio originale----- Da: amsat-bb-bounces@amsat.org [mailto:amsat-bb-bounces@amsat.org] Per conto di andy thomas Inviato: lunedì 26 settembre 2011 12:56 A: amsat Oggetto: [amsat-bb] Arissat-1 silent over UK: Explanation
As reported over the weekend, Arissat-1 is no longer audible in the UK, because she does not switch on until after about 14 minutes from entering sunlight. I believe the sequence is: enter sunlight: MET starts: timer activated 14 minute wait before tx - other systems live Tx on with data at a MET of 14 minutes Tx sequence We in the UK now have to wait unril the orbit continues to precess to the late evening (about 10 days' time) 73 de andy G0SFJ _______________________________________________ Sent via AMSAT-BB@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
participants (2)
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andy thomas -
Claudio Ariotti, IK1SLD