[amsat-bb] AO-85 SWL

[Nicholas Mahr KE8AKW]

Hello all,
I listened to both the November 8th 17:15 UTC pass and the November 9th
0:00 UTC pass, both of which I was using my 17el beam with HDSDR recording
IF files and piping it into Foxtlm, decoding telemetry, Both recording are
in my dropbox file
herehttps://www.dropbox.com/sh/bhzpp4aer0i3j0m/AABiTWdkA_zj2OGMbnNP6H7Ia?dl=0
.
On the November 8th 17:15 UTC pass I hear Jerry N0JY testing with someone
else, testing out power levels on the satellite with I believe telemetry
on. On the recent November 9th 0:00 UTC pass I hear no telemetry on the
beginning of AOS and hear Jerry and Mark and Drew testing the bird, than
mid way through the pass the telemetry comes back on, Interestingly enough
I see in HDSDR the downlink jumps up in frequency slightly when the bird
switches between COR mode and Repeater/Telemetry mode.

As far as I can tell, COR mode on AO-85 slightly sounds better on the
downlink, the audio sounds somewhat better, But I dont think its going to
affect receiver sensitivity. The passes with the COR mode on, the downlink
sounds much stronger and has better audio. I have yet to work in fully in
COR mode to see how good the receiver sensitivity is.

73's KE8AKW Nick
(Go Fox)