Unidentified signal on 20 Mtrs
I am receiving a signal on 14.183 MHz that is repeated every 30 seconds and last for about 2 seconds. It is about 12KHz wide. Anyone any ideas what it is? I would be interested.
posted by John @ 9:13 AM
2 Comments:
John - looks like I'm getting a similar signal but (at 1:15am) constant.
Hi John,
One possibility is that these are QRM from power-line ethernet adapters. Poor quality adapters leak broadband noise over the whole amateur HF band and they do look like that in the spectrogram display.
One way to confirm the source of QRM is to rotate your beam - the strongest signal will come from a source in that direction within about 50 meters.
If you have another ham within 50 meters of your QTH you can triagulate the exact location of the QRM.
73 Alex
Post a Comment
Subscribe to Post Comments [Atom]
<< Home