Looping tones on 3828 kHz (HF airband)

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Looping tones on 3828 kHz (HF airband)

Post by JEL » Mon Jun 15, 2020 10:38 pm

EDIT: Solved! It is the Russian "The Squeaky Wheel"

Original message below:
These tones have been looping for several hours now on 3828 kHz (HF airband) :

They appear to be mostly frequency-stable, but, as you can also see in the video, they occasionally wobble somewhat.

Any ideas to what this could be?


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