There has been a strong carrier on 137.7446 kHz for at least a week. No modulation and strength doesn't seem to vary. Can anyone else hear this ? If not and it turns out to be local interference, I'l
There has been a strong carrier on 137.7446 kHz for at least a week. No modulation and strength doesn't seem to vary. Can anyone else hear this ? Yes, I can. It is so consistant (ever since we were
Maybe we could do some direction finding on this one and I'll try to find out exactly where the signal is coming from. I'm probably closer, which could help... 73, Mark, F6JSZ Yes, I can. It is so co
I got the impression that carrier has only appeared recently - withn the last couple of months anyway, but my memory is probably fading with age ! I spotted it since It was sitting only a few 10s of
On this subject, does anyone know of a low-cost source of 455 kHz (series resonance) crystals. I want to make up a ladder filter for the RA1792 with a much narrower bandwidth than the 300 Hz mechani