RTL2382 s with birdies on 1080Mhz

#1
I have two nooelec SDR dongles and both have an internal birdie on 1080Mhz, the newest one is a SmarT
My USB extensions cables do not have noise suppressors / chokes on them.
There are other birdies down on 540Mhz & 270Mhz but they are weaker.
Living in the country with a wireless internet around 930Mhz.

Anyone have a solution or ideas on how to tame the birdie?
 
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