Amateur Satellites

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Discussion about amateur reception and processing of data from artificial satellites, primarily through radio signals but data from internet resources is welcome too.

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thomasdouwes

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APT image from NOAA-15, currently with AVHRR scanner motor malfunction, plus raw image, waterfall screenshot, audio sample and DSB images as bonus. (i.imgur.com)

submitted 1 year ago by [email protected] to c/amateursatellites

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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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[–] [email protected] 2 points 1 year ago* (last edited 1 year ago)

Also, The top right of your APT image is very interesting, some of the actual corupted data seems to be getting into the APT