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Interesting noises in the shortwave 21m band, around 14kHz.
Sounds like digital communications of some sort.
If you have a shortwave receiver, have a look and see if you can hear them.
And while you are at it... Why not upload to Freesound? :)
Type
Wave (.wav)
Duration
0:34.074
File size
3.1 MB
Sample rate
48000.0 Hz
Bit depth
16 bit
Channels
Mono