HFU HF Underground
General Category => General Radio Discussion => Topic started by: KMD3HR on February 09, 2014, 2246 UTC
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Notice it more this evening..Can anyone guess at what I might be hearing. It sounds like a short swoosh chirp that pulsates every 2 sec and sounds like tone gets higher and higher? SSB then disapears... Maybe some occilation on this end local? Sounds like if you had a carrier and then nturned the tuning knob fast?
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FWIW, I've heard switching power supplies make similar noises, especially phone chargers on standby.
+-RH
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I heard this while staying at a hotel. Never anywhere else ???
Peace!