Posted by Garry, K3SIW [ k3siw@sbcglobal.net ] on January 07, 2026 at 22:52:30.

In Reply to: Speaking of Decoding LF Signals posted by Gedas W8BYA on January 07, 2026 at 19:33:22.

Hi Gedas, Thanks for mentioning the LF European signals. I used to copy DDH4 on 147.3 kHz years ago sending 50 baud RTTY with 85 Hz shift. I also have 8 bit ASCII decodes of HGA-22 on 136.6 kHz using Space/Mark=1170/830 Hz when tuned to 134.6 kHz USB. FSK station CKN in BC used to broadcast primarily on 76.2 kHz but occasionally moved to 124 kHz and 133.15 kHz. Meanwhile CFH in ON was generally on 73.6 kHz but also sometimes showed up on 133.2 kHz and 137 kHz. Nice to know at least some of those sources are still plugging away. I notice the winter QRN you mentioned too. Even with nothing showing on the US lightning map (https://www.blitzortung.org/en/live_lightning_maps.php?map=30 ) it's often noisy here and also out on the west coast, where the KPHSDR receiver is often flooded with lightning crashes. 73, Garry, K3SIW

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