[amsat-bb] Re: Doppler Discussion

[Tim - N3TL]

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 
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
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[amsat-bb] Re: Doppler Discussion

[Clint Bradford]

>> Please note that I got a "broken link" window when I tried to go to that 
>> page.

You have your browser set to "protect" you from too many "re-directions." Or 
maybe I messed up.

You can grab a copy on the DOCS page at ...

http://web.me.com/clintbradford/k6lcs/Home.html

It is the third or fourth file from the bottom of the list.

Clint, K6LCS



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