HFU HF Underground
Loggings => Spy Numbers => Topic started by: kris on March 16, 2018, 2352 UTC
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6- tone string repeated without changing.
Carrier + USB 1,2kHzwidth modulation tone
20.53 UTC There is visible digital transmission between tones
21.00 two tones bip
21.01 TRX off
S9+20 WEB SDR NL