[amsat-bb] AO-92 L Band Power
Jerry Buxton
n0jy at amsat.org
Thu Jul 9 03:07:58 UTC 2020
On 7/8/2020 16:51, Alan Blind via AMSAT-BB wrote:
> Using 10 Watts, I have not been able to get into AO-92 L Band.
>
>
Hi Alan,
Perhaps it's something else, just for thought.
At 1267 MHz frequency is important and with the higher Doppler shift and
perhaps other slightly stronger or closer to center frequency uplink
signals might be captured. AFC favors stronger, at least fairly
constant strength signals and those closer to the center frequency. You
may have enough power but are just enough off frequency to be bested by
other signals, off frequency can be because of PC clock, lat/long (your
QTH) in the tracking program, the accuracy of your transmitter, and
items of a similar nature.
I have spent a few passes over the years being off frequency or even
stupidly off frequency or even off (wrong) band, wrong Doppler.sqf line
selected in the CAT window, no/wrong CTCSS, or forgot to engage antenna
tracking, that kinda stuff that just happens. Sometimes the cats turn
off the radio when I'm not looking, just before a pass. Nobody knows
about these problems though because I haven't told anyone, if somebody
asks where I was I just say like "no, I didn't get on for that pass".
Jerry Buxton, NØJY
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