[amsat-bb] AO-7 broadband noise in passband.
Bill Bordy, NJ1H
nj1h at comcast.net
Thu Jun 1 04:02:22 UTC 2017
I have been observing AO-7 quite a bit lately and I have noticed three
broadband humps in my panadapter display. I also see these in W5RKN
panadapter captures at:
This confirms these are being transmitted from AO-7. They disappear
immediately after the mode switch in his captures. I also observed this
today at 31 MAY 2017 about 19:03 UTC during a mode switch.
Does anyone have an explanation of why these occur? The obvious might be
some sort of signals on the uplink. Has anyone identified if these
signals occur throughout the world or just in specific areas. If you
look at these, a large part of AO-7's power output is being used to
transmit the broadband humps.
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