[LARC-CQ] RFI CW AM Broadcast Band

Fred Delaney 1980k1du at gmail.com
Sat Jul 24 04:35:59 PDT 2021


Hi George,
 I was reading there was a lot of signals coming from Cuba interfering on
the 40 meter band around 7.074. They
could be coming from there Jamming their 530 am station with what's going
on there. Just a thought.
                                      73,
                                   Fred   K1DU

On Fri, Jul 23, 2021 at 3:18 PM George Mann via CQ <cq at lists.lakelandarc.org>
wrote:

> Buddy, thanks for your reply. You are probably close to the answer.  I'll
> also try two radios the next time I hear the signals. The 540 AM is WFLA
> Orlando station.
> 73 de George KJ4UW
>
> On Fri, Jul 23, 2021, 11:11 AM Harmon Morgan via CQ <
> cq at lists.lakelandarc.org> wrote:
>
>> 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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