[LARC-CQ] RFI CW AM Broadcast Band

Harmon Morgan wb4omg at frontier.com
Fri Jul 23 08:11:03 PDT 2021


Not that many possible sources for CW, at that frequency. The MW marine frequencies, are gone. About 99% of the Amateur operations on 630 Meters is digital. There are still some beacons, sending modulated CW, down in the 200~400 KHz range. It could be a spurious signal, from an HF transmitter. It is most likely a spurious response, in your receiver. I will take a listen, tomorrow. Do not really have a good receiver, for that frequency, though.

Buddy WB4OMG

> On Jul 23, 2021, at 9:58 AM, George Mann via CQ <cq at lists.lakelandarc.org> wrote:
> 
> Several mornings, today too around 9 AM I am hearing CW coming through on 540 AM. It is hard to copy as there is some roughness on the signal and no beat frequency to make a note. It seems to be at about 13-15 WPM sending possibly code practice or letter group. Today the letter T was sent in several strings along with other letters.
> Listen and report if anyone else hears this. I'm sure the station would like to know. Comments please...
> 73 de George Mann KJ4UW Polk City
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