[amsat-bb] Re: adjusting for Doppler
m5aka at yahoo.co.uk
Tue May 14 14:30:56 PDT 2013
See The One True Rule for Doppler Tuning
73 Trevor M5AKA
--- On Tue, 14/5/13, Rolf Krogstad <rolf.krogstad at gmail.com> wrote:
> From: Rolf Krogstad <rolf.krogstad at gmail.com>
> Subject: [amsat-bb] adjusting for Doppler
> To: amsat-bb at amsat.org
> Date: Tuesday, 14 May, 2013, 20:47
> I am sure this has been hashed over
> in the past but as a novice to the
> birds I am not sure how to proceed when operating one of the
> I looked at the latest editions of two ARRL publications:
> ARRL Operators Manual, edition 9, copyright 1007-2011
> ARRL Satellite Handbook, copyright 2010
> Both are very clear about how one should allow for Doppler
> shift on the
> linear transponders.
> One clearly says find your spot and then use the downlink
> VFO to adjust for
> Doppler shift, don't touch the uplink VFO after the initial
> setting of the
> The other clearly says find your spot and then use the
> uplink VFO to adjust
> for Doppler shift, don't touch the downlink VFO after the
> initial setting
> of the frequency.
> Color me confused...
> Rolf NR0T
> Amsat #38889
> Sent via AMSAT-BB at amsat.org.
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