[amsat-bb] Re: SSB Operation on the satellites.

Jari Koivurinne jari.koivurinne at aina.net
Wed Jun 8 22:37:56 PDT 2011

> I am new to the satellites.  Got to where I can hear my downlink if the
> bird is
> higher than 15 degrees.  My question is about handling the doppler shift.
> If you do not have a sat program automatically correcting you rig
> frequency,
> what is the most common or preffered technique?  1 - Hold the TX steady
> and adj
> the RX for doppler or 2- Hold the RX steady and adjust the TX for
> doppler?  I
> know this must be a basic question but I am learning.  Thanks,
> Doug


Good question.

Hold the TX steady and adjust the RX. If You adjust TX, the other guy have
to adjust also his RX and then his TX... a mess.
It is much easier if everybody adjust only his own RX and keeps TX steady.

Jari OH3UW

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