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Re: Doppler lesson



At 01:18 AM 9/11/01 , John Stephensen, KD6OZH wrote:
>I've never seen anything published on AO-40's frequency stability so I
>suppose that its frequency could also be drifting after eclipse as things
>warm up.

I have seen 5 or 6 kHz of downwards drift (AFTER correcting for
Doppler) from AOS at MA6 or so until a couple of hours later.
It could be a combination of the eclipse and the transmitter having
just been turned on after being off during the eclipse.

Doug Braun
NA1DB

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