[amsat-bb] Re: VO-52

David Palmer KB5WIA kb5wia at amsat.org
Fri Apr 12 09:47:20 PDT 2013

Hi John,

Last night's VO-52 pass (around 0315z??) was normal signal levels.
Only unusual thing was about half way through the pass (as sat was
over northern US) it seemed to be picking up some sort of interference
... I was watching the entire downlink passband on the SDR waterfall
and there was a 10kHz wide swath of "static" type noise that migrated
through the passband.  As the noise moved through the center of the
passband, it greatly reduced my downlink signals.   I don't have any
solid evidence, but my gut feeling is that the noise had nothing to do
with VO-52 itself, but was instead something below that was
transmitting hash on the uplink.

Overall, VO-52 works great for me, I use it every day or two on
evening passes over northern California.



On Fri, Apr 12, 2013 at 5:47 AM, John  / NS1Z <ns1zjohn at gmail.com> wrote:
> Just got off the 1235z (approx) pass and think the levels are quite low. It is me?

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