Hello Lubos and LF, Very interesting this observation, I also thought me of local QRM ! Very great activity on 137 Khz, (the grabber of Laurence in China made in true "catch"! ) 73 qro JeanPierre f1a
Hi Jean-Pierre, in this case I'm quite sure it was indeed Luxembourg effect. My narrowband TA grabs suffered from the same noise-like pattern from 2:10 to 3:00, arriving from north. For me, the most
... the strong noise bands were caused by Luxembourg effect (ionospheric crossmodulation) from a strong LF or MF broadcasting transmitter onto the DCF39 carrier. When the "heater" is modulated by mus
Hello Markus , Lubos , Markus Vester a écrit : ... the strong noise bands were caused by Luxembourg effect (ionospheric crossmodulation) from a strong LF or MF broadcasting transmitter onto the DCF39
Jean-Pierre, LF! I had thought, that it was local noise, but then I saw it on your grabber as well. This noise started 02:10 and stoped 03:05UT. 73, Lubos, OK2BVG Získejte novou generaci slueb Window
Apart from that, can anyone tell me why local noise IS a vertically-polarised E-field problem? I can intuitively (I think) understand that it would be E-field since it is primarily a high-impedance p
Re the 520/1010 discussion. Wilsons' main objection to the 520 appears to be that it suffers from a great deal of local noise pickup, which actually would be expected from ANY vertically-polarised E-
Hi All Reducing Noise in home LF receiving Installations. See article by WA4GHK lwca.org/library/articles/wa4ghk/gnd_isol.htm This might help those with mains noise problems on LF rx. 73 Mal/G3KEV
