Clint, Thank you for this. Please note that I got a "broken link" window when I tried to go to that page.
73, Tim - N3TL ________________________________ From: Clint Bradford <clintbra...@earthlink.net> To: amsat-bb@amsat.org Sent: Tue, June 1, 2010 12:49:35 PM Subject: [amsat-bb] Doppler Discussion >> ... Doppler always will have a more pronounced effect (in relative terms, of >> course, based on the frequencies being used) on the higher of the two ... Here's the actual equation for determining Doppler shift ... http://tinyurl.com/calc-dopp Your generalization is correct. On a 45 degree pass of a sat that's in a circular orbit at 497 miles up, approximate Doppler shifts calculate to ... At 15m, +/- 477 Hz At 10m, +/- 659 Hz At 2m, +/- 3.27 kHz At 70cm, +/- 9.76 kHz At 23cm, +/- 28.5 kHz at 13cm, +/- 53.8 kHz Clint, K6LCS http://www.work-sat.com _______________________________________________ Sent via amsat...@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...@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