By looking at the panadapter on my flex 6500, I can see KEES; they're not
even THAT strong, (around -40 dbm) but the crud is definitely there, only
down about 30 db from the main signal. It takes multiple phone calls,
emails, mean facebook posts, and text messages to KEES and the FCC to get
anything done about it. Same thing happened couple years ago...
When this happened before, do you know what happened to fix it?
I've had problems like that several times, sometimes from stations hundreds
of miles away. Sometimes it is parasitics in the transmitter, and sometimes
it is arcing in the antenna system.
Although it could be anything, for my cases the real long distance stuff has
always been parasitics in transmitters. Parasitics are frequency selective,
perhaps a few hundred kilohertz wide.
The close-in stuff from local stations has usually been arcing in antenna
systems. Arcing in antennas is generally very wide bandwidth.
About half the time a nice call to the correct person at the radio station
will get things fixed. The rest of the time it takes FCC involvement, which
can be difficult. In the interests of smaller government and lack of skilled
field engineers, the FCC has become far understaffed. You have to figure out
how to work around the field engineer shortage problem, if you are sure it
is the station's problem and the station does not want to fix it.
73 Tom
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