HFU HF Underground
Loggings => Utility => Topic started by: BillyTheKidMI on March 06, 2022, 1810 UTC
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Heard on SDR in Poland 5166 Khz USB
????
https://voca.ro/1nwXVmAGdUXe
https://voca.ro/18gjEwggm8Hm
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This is a Hungarian standby frequency. Used for technical services and NVIS networking.