[Elecraft] Broadcast band interference

[Mel Farrer]

Hello Tom,
 
I find it hard to understand how AM broadcast station in the lower BC band could be your problem.  I am thinking since you have the problem on the higher bands, it might be overload from the SW BC bands also on AM where propagation is the cause of the randomness of the interference.  I would use your KX3 to tune the adjacent SW bands when you have the interference and see if any of them sound the same. Or better yet use another SW receiver to compare the audio content.  

Also, if you insert the ATT does the interference go away??  Once you identify the source you can decide on what remedies are possible.  Just some thoughts,
 
Mel, K6KBE

--- On Tue, 1/8/13, Tom H Childers <n5ge at n5ge.com> wrote:


From: Tom H Childers <n5ge at n5ge.com>
Subject: Re: [Elecraft] Broadcast band interference
To: elecraft at mailman.qth.net
Date: Tuesday, January 8, 2013, 12:10 PM



Check the addresses of your local AM radio broadcasters.  You may
have one very close to you and not know it.

Here's a way to find where and who the broadcaster is.

If you have an AM radio in the house compare the signal on the KX3
with those you hear on the AM radio to see if you can identify the
station you're hearing.

If a station is very close, you may have to use a filter at the shack
end of the feedline to notch it out.

On Tue, 8 Jan 2013 19:41:57 GMT, "w0ebb at juno.com" <w0ebb at juno.com>
wrote:

>I'm having occasionally issues with broadcast band interference on my KX3, SN. 564.  It seems to come in at random times throughout the day on multiple bands.  All of my antennas are tuned to the band I'm using them on and not just a random wire type.  I tend to see the problem mostly on 30, 20 and 17 meters. Any reason I'm getting this type of interference and is there any way I can take care of it or block it.  Sometimes it's loud enough to be a problem when trying to copy weak CW signals. Gary A. - W0MNA
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73,
Tom
Amateur Radio Operator N5GE
ARRL Lifetime Member
QCWA Lifetime Member

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