This should have read "This is not UNusual ..."
Richard (Rick) Karlquist wrote:
> This is not usual at all, due to resonances in the power
> wires. It is surprising how sharp they are.
>
> Rick N6RK
>
> Pete Smith wrote:
>> Today, listening on 10m, I noticed that whenever I tuned into the 28400-475
>> range, there would be a marked increase in what sounded very much like
>> ordinary powerline noise. Trouble is, I'm not aware of any mechanism that
>> could account for this "peaking" in a certain frequency range. I have
>> checked the rx, and it has the same apparent sensitivity in that range as
>> elsewhere in 10m.
>>
>> 73, Pete N4ZR
>> The World HF Contest Station Database
>> Full details on 3435 contest stations - hundreds of new and updated listings
>> Just updated 11/27/07 http://www.pvrc.org/WCSD/WCSDsearch.htm
>>
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