Curious UNID signal centred on 137.705 kHz, captured at 2130, but has been coming and goinf for several hours. U I thiught that it might have been local to me, but I see it on Markus's grabber too. 7
GA Dave, LF Curious UNID signal centred on 137.705 kHz, captured at 2130, but has been coming and goinf for several hours. U I thiught that it might have been local to me, but I see it on Markus's gr