Robert,
Hum... About every 3 kc... Do they drift? I'd say that the
"pull-the-plug" method of troubleshooting might yield interesting
results. Maybe a washing machine or dryer or some other appliance. At
least, that'd be my uneducated guess! Hope you find it!
kurtt WB9FMC
On 4/5/24 14:59, Robert Strickland via Elecraft wrote:
The screen shot of the noise is posted on QRZ.com. This link will get
you there.
https://forums.qrz.com/index.php?threads/noise-reduction-resources.908913/
On 4/2/2024 20:36, Robert Strickland via Elecraft wrote:
Thanks to those answering my request for noise reduction
sources/sites. Several pointed out the distinction between
heterodynes originating in the receiver and noise external to the
receiver. I was careless in the wording of my original post for which
I apologize. Since a picture is worth many words, I'm included a
screen shot of my panadapter tuned to 15m [see below] with the
"noise" spikes clearly pictured. I have not tried the house shut down
with the radio operating off a battery. Other time demands, but will
do so shortly. I'm sure that will be informative. Interesting that
the spikes occur only in the vicinity of 15m. They gradually diminish
outside 15m until they are completely gone by 20.000 and 22.000 MHz.
...robert KE2WY
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