HFU HF Underground
Loggings => Other => Topic started by: TRI International on June 14, 2025, 1132 UTC
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1125 UTC I came across this strange signal (to me) what is this on both frequencies at the same time?
it repeats break then repeat again. :o
Audio 1: https://voca.ro/1jihO0DhOBYH
Audio 2: https://voca.ro/1kFUeepBB7hl
S 3 to 4 via University of Twente Netherlands sdr, must set filters to 6.76 KHz.