At one QTH (Key Largo) I have noticed a problem similar to Tom's with the KX3. On a number of quiet bands, I can just hear a broadcast station whose volume is not affected by spinning the VFO. It wasn't a real problem so I didn't make an effort to eliminate it. The nearest AM broadcast antenna I can find with an online antenna search engine is 13 miles away on the mainland, however there is a large tower only one mile away - I just can't find an AM station that is broadcasting from it.
In any event I have experienced what he is talking about. Don't know if using IF shift would have eliminated it. Chip AE5KA On Tue, Jan 8, 2013 at 3:28 PM, Mel Farrer <[email protected]> wrote: > 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 <[email protected]> wrote: > > > From: Tom H Childers <[email protected]> > Subject: Re: [Elecraft] Broadcast band interference > To: [email protected] > 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, "[email protected]" <[email protected]> > 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 > >______________________________________________________________ > >Elecraft mailing list > >Home: http://mailman.qth.net/mailman/listinfo/elecraft > >Help: http://mailman.qth.net/mmfaq.htm > >Post: mailto:[email protected] > > > >This list hosted by: http://www.qsl.net > >Please help support this email list: http://www.qsl.net/donate.html > 73, > Tom > Amateur Radio Operator N5GE > ARRL Lifetime Member > QCWA Lifetime Member > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
