Bill, That's normal and nothing to worry about as band noise covers it. There was a posting about this before, that I can't locate just now. It is mainly from internally produced noise from the switched mode regulators in the PX3 apparently.
73 from David GM4JJJ > On 20 Jun 2016, at 04:21, Bill Frantz <[email protected]> wrote: > > Probably I'll kick myself for asking a dumb question, but here goes. > > Receiving on a dummy load, I am getting a pattern of lines on the PX3 screen > with my KX3. There are 5 strong lines and 2 week lines symmetrically on > either side of the green bar (tuned frequency). When I tune the KX3, they > move with the green bar. They move down by about 8 KHz when I switch RX SHFT > to 8.0 from NOR. The closest lines to the tuned frequency are about 12 KHz > above and below it. The other lines are not evenly spaced, but are spaced > about 3-6 KHz apart. Turning RX ISO on has no effect. > > When I attach an antenna, I get normal results from signals on the band. The > signals are not distributed symmetrically they way they would be if the I/Q > cable was not inserted all the way on the PX3 and KX3. (And I pushed really > hard too.) > > Any ideas of what is going on? Any way to "cure" it? > > Thanks in advance. > > 73 Bill AE6JV > > ----------------------------------------------------------------------- > Bill Frantz | Since the IBM Selectric, keyboards have gotten > 408-356-8506 | steadily worse. Now we have touchscreen keyboards. > www.pwpconsult.com | Can we make something even worse? > > ______________________________________________________________ > 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 > Message delivered to [email protected] ______________________________________________________________ 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 Message delivered to [email protected]
