See The One True Rule for Doppler Tuning http://www.amsat.org/amsat/features/one_true_rule.html
73 Trevor M5AKA --- On Tue, 14/5/13, Rolf Krogstad <rolf.krogs...@gmail.com> wrote: > From: Rolf Krogstad <rolf.krogs...@gmail.com> > Subject: [amsat-bb] adjusting for Doppler > To: amsat-bb@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 > linear > transpondesr. > > 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 > frequency. > > 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 > EN34 > _______________________________________________ > 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 > _______________________________________________ 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
