[amsat-bb] Re: AO-51 mode change and recommendation
sq7dqx at poczta.onet.pl
Tue Dec 29 04:08:06 PST 2009
> Attempted to use this mode on 2 passes but was not successful.
> Several stations tried to work on the first pass over Australia
> (07:51 UTC 29 Dec) but audio was very weak and there was a lot of
> interference on the signal.
> Some stations had difficulty netting onto frequency, probably because
> they could not hear themselves clearly.
> On the second pass I could hear no other stations attempting to access
> and while the downlink signal was strong there were all manner of
> noises present and only once or twice could I actually hear my voice
> among the noises.
> I'm sure that last time AO-51 was in this mode it worked reasonably
> Will be interested to hear reports from other continents to see if the
> interference was specific to this region.
> Alex / VK5ALX
I tried at today morning and at the noon.
At the morning i heard SQ1 station but I did not finish qso.
At the noon I was copied by UA9UIZ and OZ1MY but I am not sure raport from
Ib (57 I can hear on record) and locator given by UA9UIZ is not NO46 but
Signal is realy week from USB/FM transponder probably due to latest magnetic
torque experiment and changed antenna orientation on norhern hemisphere. It
sounds like fraction of one watt, not like almost 2W transmitter.
Here is a record (cut, too much noise):
http://www.enduro.idl.pl/audio_sat/ao51_ssb_fm.mp3 and sorry for too low
quality of sound.
Signal is low (I know, 53 is a little too optimistic) but I did it :)
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