The KX3 is a direct conversion receiver and some local oscillator signal makes it out the antenna connector. The LO is at the carrier frequency of the tuned signal.
You need to use the 10 dB isolation preamp. That is designed to reduce that radiated RF. This is also a good setting for Field Day with multiple rigs. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On May 29, 2018, at 7:55 AM, Fred Nassar <fnassa...@gmail.com> wrote: > > I am using the KX3 with SDR play as a pan adapter. I have noticed that > there is some type of signal (quite strong) showing up on the pan adapter > on the frequency that the KX3 is tuned. This signal moves as I move the > VFO, so it seems to be some local oscillator issue. The result is the sdr > play seems to be desensitized and signal levels on the KX3 are lower. When > I engage the RX pre-amp, this signal goes away and all is right with the > world. On most bands 10 db is enough to do the trick. On 17 meters it takes > 30 db to get rid of it and remove the desensitization from the RX. Wonder > if anyone else has seen this working with an SDR play and KX3? I have the > 2.9 firmware installed. Thanks...Fred, WD5F > ______________________________________________________________ > 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 > Message delivered to wun...@wunderwood.org ______________________________________________________________ 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 Message delivered to arch...@mail-archive.com
