[RFI] AM Broadcast Intermod?

[David Eckhardt]

Pete, excellent suggestion.  I spaced that trick which is far easier than
what I suggested.

Dave - WØLEV

On Tue, Jan 28, 2020 at 5:33 PM AA5CT via RFI <rfi at contesting.com> wrote:

>  Pete,
>
>
> What does 10 dB of attenuation do? Does it seem to add more than 10 dB of
> attenuation to the offending intermod?
>
>
> If so, the problem resides in the front end of the receiver.
>
>
> 73, de AA5CT Jim
>
>      On Tuesday, January 28, 2020, 11:06:10 AM CST, N4ZR <n4zr at comcast.net>
> wrote:
>
>  I'm embarrassed to admit that I had overlooked a noise-maker in my
> shack, my 1 TB USB disk drive.  I cleaned that up with a few turns of
> the DC power cable around a type 31 toroid, and now I've uncovered
> something under it.  It's a wideband signal (tuning makes no
> difference), but sounds very much like a badly distorted broadcast station.
>
> Just on a hunch, I tried tuning across the AM broadcast band, and found
> a loud AM sports radio station on 1570 KHz that appears to be
> broadcasting the same content - pauses, pitch of voices, etc. all seem
> to match..  Unfortunately, just before I could get set up to record, the
> voices on 160 suddenly went away.  I'm assuming they'll be back, and
> while I wait to get a recording I'm wondering:
>
> *  Does this sound like intermod, or some other phenomenon?
>
> * Is it the result of something wrong at the station?
>
> * If so, how best to approach them about it?
>
> --
> 73, Pete N4ZR
> Check out the Reverse Beacon Network
> at <http://reversebeacon.net>, now
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>
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-- 

*Dave - WØLEV*
*Just Let Darwin Work*
*Just Think*