If the interference is from a single station, you can use a "wave trap". This is a series-tuned resonant circuit across the transmission line that "shorts out" that frequency.
Here is a good article about building one to get rid of a MW broadcast station. http://www.w4btx.com/wave.html wunder K6WRU On Aug 15, 2013, at 1:36 PM, Ron D'Eau Claire wrote: > If turning the Preamp off fixes the problem, that would be my first choice > as long as I can hear the noise level drop when I disconnect the antenna. > > If removing the antenna doesn't cause the noise level to drop, then the > preamp is likely useful for hearing weaker signals. In a QSO I'd still turn > the preamp off to see if it affects my ability to hear the other station. > > Putting too much gain at the antenna input compromises the performance of > any receiver > > 73 Ron AC7AC > > -----Original Message----- > From: elecraft-boun...@mailman.qth.net > [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Igor Sokolov > Sent: Thursday, August 15, 2013 1:19 PM > To: Paul Barlow; elecraft@mailman.qth.net > Subject: Re: [Elecraft] KX3 BC Breakthrough > > Paul, > I have this direct AM detection on my KX3 every day mainly on 20-15-10 m > bands/ I would not call it a problem because shifting IF 8 kHz solves it > 100%. Although this disables dual RX but one seldom (if ever) needs it on > this portable QRP transceiver. > Yet the radio is the best available choice for traveling and it has got very > good receiver. > > 73, Igor UA9CDC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
