[amsat-bb] PSAT PSK31 downlink & power requirements

KO6TZ Bob my.callsign at verizon.net
Sun May 31 00:54:38 UTC 2015

For the afternoon pass 21:17u @ 52 Deg, I used Dave's method and NOT try 
to match up signals.  Use a program that decodes all of the signals and 
try to reply to as many as I could.  With some practice, that should 
work out better.   I don't know if Glenn copied me or not.  He was the 
only satellite CQ I saw.

As for power:  I can barely  see my signal using my di-pole.  When I 
used 85 watts 70% ALC into a 1/2 wave vertical, (10m Ringo) I was able 
to turn on the FM transmitter and saw a good clean, 21 IMD, signal on 
the down-link. I have no idea what it looked like for the terrestrial 

  I did not have to wait for the telemetry to turn on the FM 
transmitter, and I did not splatter across the waterfall of the down-link.

More practice coming.


More information about the AMSAT-BB mailing list