[amsat-bb] PSAT PSK31 experimental software

Red Willoughby red at redwilloughby.com
Fri Jul 17 20:26:44 UTC 2015

I was on the 1735Z pass today and finally saw the PSAT telemetry signal 
but it was not strong enough to decode well (with DM780) even though it 
was a very high pass. I don't think the beacon came on due to receiving 
my signal however. I saw a couple of other PSK signals either side of 
2000 KHz in the passband but they were also weak. I called CQ before, 
during and after the pass to see if my signal would appear on the 
waterfall (I am using DopplerPSK to transmit so I am full duplex). But, 
neither PSAT nor BRICSAT are hearing me (running 25 watts to a Windom 
that otherwise does a remarkable job).

I am also seeing some conflict in the AOS/LOS times between SatPC32 and 
HRD SatTracker. Both are using identical TLEs for NO-84 - I compared the 
TLE lines in both files character by character. I am using catalog 
number 40654 for NO-84 in both programs and have my location data 
entered identically in both. SatPC32 shows the NO-84 AOS about 8 minutes 
behind the HRD NO-84 AOS and I believe SatPC32 is correct based on the 
signals I heard. Does anyone have any guidance for getting these times 
sync-ed up?

Thanks in advance.


More information about the AMSAT-BB mailing list