[amsat-bb] PSAT downlink

David W0DHB dave at w0dhb.net
Sat Jun 6 17:36:10 UTC 2015


Yes, PSK31 must be detected (or w3ado beacon must TX) before 70cm downlink

The diagonal moving stations were probably just terrestrial QSO' s .


-----Original Message-----
From: AMSAT-BB [mailto:amsat-bb-bounces at amsat.org] On Behalf Of Mike
Sent: Saturday, June 6, 2015 11:24 AM
To: Amsat Bb-list
Subject: [amsat-bb] PSAT downlink

So I was able to copy Psat  435 mhz downlink today...nice !

Copying the beacon with digipan was quite easy. Watching the stations move
diagonally across the waterfall was an interesting Display of the Doppler on
the uplink. Watching the satellite today transmit then cease to transmit
then transmit again raises one question. 

Does someone have to be transmitting to the input of the satellite on 28MHz
for the beacon / fm 435 MHz downlink to be active ?


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