Amateur Satellites

168 readers

1 users here now

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

founded 1 year ago

MODERATORS

thomasdouwes

[email protected]

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

14 comments fedilink hide all child comments

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:

Compatibility image link

Waterfall:

Compatibility image link
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):

Compatibility audio link

And the bonus, DSB images:

Compatibility image link
Channels 1-20 are left-to-right then bottom.

And also AVHRR scan motor current as of today:

Compatibility image link

you are viewing a single comment's thread
view the rest of the comments

[–] [email protected] 2 points 1 year ago

Nope. I also had those lines when I tried before, so I thought it's something with the satellite. Maybe there is some interference. NOAA-19 uses different frequency for DSB. I'll have to try with NOAA-18 (and hope it doesn't cut off again), that should be on same frequency as NOAA-15. But I didn't notice any interference.

Thanks for that setting. That looks nice.