...counting the 1ms pixels, the FM rate seems to be about 71 Hz, plus or minus soundcard samplerate deviation. Googling for "72 Hz plasma" brought up that this is a standard framerate for Pioneer pla
Hello all on LF , You could see that the grabber was less powerful these last days! There is a spury just on 137 Khz which desensitizes 10/15dB my reception, I am sorry! 73 Jean-Pierre f1afj
Hello Jean-Pierre and all, Have you also noted increased wideband noise last night. The band noise faded up and down every few seconds with 6 - 10 dB. I could here it on LF and also on 160m, though l
Dexter, Jean-Pierres wideband recording above 128 kHz contains all three telecontrol carriers (DCF49 128.93, HGA22 135.43, DCF39 138.83 kHz idle), with DCF49 being the most audible one. The one you h
Markus Vester wrote: Dexter, Jean-Pierres wideband recording above 128 kHz contains all three telecontrol carriers (DCF49 128.93, HGA22 135.43, DCF39 138.83 kHz idle), with DCF49 being the most audib
Hi Jean Pierre, on Spectrogram it looks like an FM-modulated source, sweeping between 130 and 141 kHz, typical for a switched mode power supply harmonic. But the strange thing is that the modulation
Hi Roelof , I think that my QRM is local (perhaps CPL) I made capture and an audio recording, you can download it here: http://jpmere.online.fr/LF/QRM_137kHz/ 73 Jean-Pierre F1AFJ Le 28/11/2010 12:07
Hi John , In the past , I had same qrm (at the beginning of 2008) concealed lasted a few days and it is disappeared ! I hope how that will make the same thing this time ! 73 qro Jean-Pierre f1afj Le
Jean-Pierre Méré (F1AFJ) wrote: Hi Roelof , I think that my QRM is local (perhaps CPL) I made capture and an audio recording, you can download it here: http://jpmere.online.fr/LF/QRM_137kHz/ The data
