[amsat-bb] AO-92 High Speed Data decode questions

[Loren M. Lang]

Ok, that makes sense. So the repeated signal I heard was simply repeated
attempts at getting the command through and were being interfered with by
the existing FM transmissions. All of the frames I collected would have
actually been DUV and not the same as the sounds I heard. Did camera mode
ever get activated during that third pass?



On Wed, Apr 29, 2020, 02:31 Glenn Miller - AA5PK <aa5pk at suddenlink.net>
wrote:

> What you heard was the command station attempting to send the command to
> AO-92 to activate the camera.
>
> Unfortunately, there were several stations trying to use the repeater at
> the time and blocking the commands being sent to
> AO-92.
>
> When the camera is active, the repeater is not available.
>
> Glenn
> AA5PK
>
> -----Original Message-----
> From: Loren M. Lang via AMSAT-BB
> Sent: Wednesday, April 29, 2020 1:13 AM
> To: AMSAT BB
> Subject: [amsat-bb] AO-92 High Speed Data decode questions
>
> I tried capturing some of the high-speed data from AO-92 today from the
> final 1750Z pass today when the camera was activated. I believe I had some
> success, but I am a little confused about what I captured. I did it in two
> stages using my phone to capture the raw IQ from my SDR during the pass and
> then playing it back on my computer right after into Foxtelem 108z5. The
> pass was only 16 degrees at it's peak, but I was able to hear the satellite
> down to as little as 6 degrees and Foxtelem reported 24 frames successfully
> decoded.
>
>