HFU HF Underground
Loggings => Spy Numbers => Topic started by: MDK2 on February 22, 2024, 0107 UTC
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Copied on Khabarovsk kiwi SDR, since there's only a very slight trace carrier at my QTH. Noted H3E (full carrier but only USB modulation) signal on the waterfall here. About SIO 444 with QSB.