HVDC power grid switched mode QRM blurs the 474.2kHz WSPR window the noise cloud slowly drifting towards our 200Hz decoding window has arrived. AERO / LETTER BEACONS close to 472-479 kHz band copied here Not yet found a site to locate those beacons 457 kHz QM 464 kHz NED 469 kHz FTZ 471 kHz UZ 473.5 475.5 kHz SA 483 kHz IA 490 kHz NK 493 495 kHz NOW 630m 2 weeks dx top down list Timestamp Call MHz SNR Drift Grid ...
Ham radio in JO33hg31 53.15N 6.35E