Unknown Noise on all HF Bands
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Uploader Comments (W9PDS)
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All Comments (9)
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that is a controller making that noise...ARRL have a noise database and you can get info from there...
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External hard drive? Power Line Interference?
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aliens?
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Sounds like a heating element that is controlled by a MCU.
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haarp :)
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sounds like a plasma tv
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5:21
Interference to Ham Radio from Plasma TVby MrCqcqcq4,555 views- 0:56
7 to 28 Mhz : What this noise ?by F8BBL7,729 views
- 1:06
PLASMA-TV NOISE !! DISTURBING HAMRADIO !!by dl6fbh7,983 views
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HF NOISEby jq1bwt166 views
It turns out that it was a failing powersupply in a plasma tv. A few weeks after shooting this, a capacitor in the tv finally blew (loudly).. The tv was quiet on hf for a long time butt eventually started doing this & then finally blew.
W9PDS 1 month ago