Re: [amsat-bb] Curious -- Frequency of SO-50 downlink at the bird?
Just wondering if anyone has measured the frequency of the SO-50 downlink at the bird recently? I've noted it appears to be a bit lower than I would expect, about 436.793.5. The frequency wobble I saw over the pass was due to my step size in the Doppler correction. Obviously well within the capture range for 435.795 FM, but mostly curious. 73, Bob, WB4SON
https://network.satnogs.org/observations/1725800/
Looks like your observation is spot on. SatNogs is tracking it at 436.793 - and it actually looks like (from the waterfall), that that half kHz may be there, too.
--Roy K3RLD
Be aware that Satnogs ground stations frequency are only as accurate as the ppm offset the owner set it up with.
KD9KCK
On Wed, Feb 19, 2020 at 6:17 PM Roy Dean via AMSAT-BB amsat-bb@amsat.org wrote:
Just wondering if anyone has measured the frequency of the SO-50 downlink at the bird recently? I've noted it appears to be a bit lower than I
would
expect, about 436.793.5. The frequency wobble I saw over the pass was due to my step size in the Doppler correction. Obviously well within the capture range for 435.795 FM, but mostly curious. 73, Bob, WB4SON
https://network.satnogs.org/observations/1725800/
Looks like your observation is spot on. SatNogs is tracking it at 436.793
- and it actually looks like (from the waterfall), that that half kHz may
be there, too.
--Roy K3RLD _______________________________________________ Sent via AMSAT-BB@amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: https://www.amsat.org/mailman/listinfo/amsat-bb
participants (2)
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Bill Gaylord -
Roy Dean