FoxTelemetry on AO-91 and AO-92
Several of us are having a heck of a time getting any telemetry from the above birds. DUV just isn't producing anything.
We hear both well enough to make QSOs on the FM transponders, but we can't seem to get any data thru the decoder.
Is it really that much more difficult to get the TLM via DUV than to listen to a voice on the 2m downlink?
Setup: 2m Eggbeater at 7', fed with 80' of 9913 AirSpy HF+ SDR SDRC V3 Software FMN 12 kHz (Highpass Filter not checked) and FMW both tried, neither produce any decoded data.
I am getting telemetry just fine from AO-73, and am also getting perfect Wx pix on 137.100 with SNR's of > 30 dB.
Am I doing something wrong, or is it just that hard to get FoxTelem to work with DUV?
Thanks for any help. 73, N0AN Hasan
How are you feeding the audio from SDR Console to FoxTelem? Are the sample rates matched (ideally 48000)?
73,
Paul, N8HM On Tue, Oct 2, 2018 at 7:54 AM Hasan al-Basri hbasri.schiers6@gmail.com wrote:
Several of us are having a heck of a time getting any telemetry from the above birds. DUV just isn't producing anything.
We hear both well enough to make QSOs on the FM transponders, but we can't seem to get any data thru the decoder.
Is it really that much more difficult to get the TLM via DUV than to listen to a voice on the 2m downlink?
Setup: 2m Eggbeater at 7', fed with 80' of 9913 AirSpy HF+ SDR SDRC V3 Software FMN 12 kHz (Highpass Filter not checked) and FMW both tried, neither produce any decoded data.
I am getting telemetry just fine from AO-73, and am also getting perfect Wx pix on 137.100 with SNR's of > 30 dB.
Am I doing something wrong, or is it just that hard to get FoxTelem to work with DUV?
Thanks for any help. 73, N0AN Hasan _______________________________________________ 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: http://www.amsat.org/mailman/listinfo/amsat-bb
How are you feeding the audio from SDR Console to FoxTelem? Are the sample rates matched (ideally 48000)?
I'm using an SDRPlay RSP2 that feeds FoxTelem via VBCable. I found during setting things up that VBCable/VoiceMeeter was configured to use the right-channel. The 'Use Left Channel' box was checked on FoxTelem. I unchecked the box and presumably matching right-channel to right-channel is working ... receiving and decoding the DUV are working.
-- 73 de JoAnne K9JKM k9jkm@amsat.org
participants (3)
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Hasan al-Basri
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JoAnne Maenpaa
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Paul Stoetzer