HFU HF Underground

Loggings => Peskies => Topic started by: R4002 on March 25, 2026, 2104 UTC

Title: 6650 kHz USB Asian Language Chatter [G8JNJ SDR] 2100 UTC 25 March 2026
Post by: R4002 on March 25, 2026, 2104 UTC

Reminds me of the Asian fishery radio chatter often heard when VHF low band is open (eg. 27.500 MHz to 39.500 MHz - FM, 12.5 kHz / 25 kHz steps).  These guys are not on VHF low band or the upper end of HF though, they're on 6650 kHz USB.  6,650.0 USB 6.650 MHz USB.  This is part of the aeronautical allocation, 6525 kHz to 6765 kHz, specifically the civilian sub-band of 6,525 kHz to 6,685 kHz.  The 6,685 kHz to 6,765 kHz portion of (mostly) military.

Very busy frequency, at least 2-3 different stations on frequency.  Lots of crashing static QRN on the band this evening.

Receiver:  G8JNJ SDR receiver, South West UK.

Title: Re: 6650 kHz USB Asian Language Chatter [G8JNJ SDR] 2100 UTC 25 March 2026
Post by: R4002 on March 25, 2026, 2333 UTC

Hearing them on the W3HFU SDR at 2330 UTC on the same frequency 6650 kHz USB