Hi Koss and Paul, I do not think that the "normal" center frequency is 436.795 MHz.
I use two frequencies for the downlink in SatPC32:
436.791 and 436.788 MHz.
I have heard it suddenly jump about 5 kHz during a pass - but that is some time ago.
The two frequencies above are not always spot on but close enough.
Have a nice weekend all.
OZ1MY/Ib
----- Original meddelelse -----
Fra: Koos van den Hout koos@kzdoos.xs4all.nl Til: amsat-bb@amsat.org Dato: Lør, 07. jun 2014 12:27 Emne: Re: [amsat-bb] SO-50 Frequency Drift
Quoting Paul Stoetzer who wrote on Sat 2014-05-31 at 12:42:
Just was on the last pass of SO-50. I was not hearing the
satellite at
first even as it rose above the trees. At the middle of the pass,
I was
expecting to find it at around 436.795 MHz, but I found it around
436.786
MHz.
Has anybody else noticed this?
I just had a pass (and worked PD5DJ, thanks!) and I also noted a downward shift in frequency as I had to select the next downward shifted frequency earlier than gpredict was showing. Gpredict has the default 436.7950 in its configuration.
I can't give exact numbers as I was busy trying to hear/make a contact but there is some downward shift.
Koos van den Hout-- Koos van den Hout, PGP keyid DSS/1024 0xF0D7C263 via keyservers koos@kzdoos.xs4all.nl Visit the site about books with reviews http://idefix.net/ http://www.virtualbookcase.com/ _______________________________________________ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
73 OZ1MY Ib