The main image in post was decoded with WXtoIMG as both noaa-apt and SatDump fail to synchronize it correctly.
Unprocessed image from noaa-apt:
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Waterfall:
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There you can see some breaks, the noticeable horizontal lines.
Which sounds like so (note: the waterfall shown above isn’t from the same time as audio):
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And the bonus, DSB images:
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Channels 1-20 are left-to-right then bottom.
And also AVHRR scan motor current as of today:
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Another interesting thing I noticed about these broken APT images is the channel B sync marker is repeated twice instead of the channel A marker. This is why the sync fails, and it makes a “tick tick” sound instead of the “tick tock” sound it normally makes.
I’d love to know what is causing this, but I think only NOAA knows what is going on with that.