You do know that you can notch spurious signals out of your receiver? There are instructions for doing so in the operating manual. It's kind of interesting to see how it appears on the P3, though. The spurious will tune across in reverse directions from normal signals, and usually at double speed. If you've notched it out of your receiver (the procedure jiggles the synthesizer frequencies a bit in the immediate area of your receiver passband) you will see it approach your receiver passband on the display and then magically disappear as it crosses your passband cursor. It will then re-appear on the other side.
Pretty interesting effect, but perfectly logical, once you understand what is being done 'under the covers' to prevent you hearing that birdie in your receiver. 73, -- Dave, N8SBE -------- Original Message -------- Subject: Re: [Elecraft] P3 Phantom Signals From: Keith Onishi <jh3...@sumaq.jp> Date: Thu, November 29, 2018 11:43 pm To: Elecraft <elecraft@mailman.qth.net> I have the same on my P3. I guess the phantom signals come from synthesizer spurious. When K3 VFO tunes to the phantom signal by turning VFO nob, you will hear its carrier. My K3 is not K3s but old one with original synthesizer. I am not sure on K3s or K3 with new synthesizer. 73 de JH3SIF, Keith > 2018/11/28 9:05、Ken Widelitz <kwidel...@gmail.com>のメール: > > I've noticed a large number of "phantom" signals on the P3. They look like > signals but when I turn the RX dial, they move along with the cursor. When I > turned the P3 off and then on, they went away of 40m but that same thing > didn't happen on 15m. Any ideas? > > > > 73, Ken, K6LA / VY2TT > > > > > > ______________________________________________________________ > 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 jh3...@sumaq.jp ______________________________________________________________ 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 n8...@arrl.net ______________________________________________________________ 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
