Dave, Same noise here (K3#1212) near 28MHz. May be related to encoder transitions spectrum falling around this frequency? With a noise level corresponding to S1 (no antenna), the VFO tuning noise is peaking to S2; with antenna, (S4 noise) the tuning noise is just audible and no Smeter level modification.
73 QRO de Rudolf, HB9ARI Dave Van Wallaghen wrote: > John, I just noticed the same thing on 10m the other day. If I used the > finger dimple, I could hear it. But if I used the outer rubber ring with 1 or > more fingers it would not be nearly as noticable. > > I was operating portable in my yard with around 150' of extension cord to > power my Gamma PS. > > I thought about searching the archives for something about this. Funny you > should mention it. > > 73, > Dave W8FGU > > > -----Original Message----- > From: John Lawrence <[email protected]> > > Date: Fri, 26 Jun 2009 17:20:59 > To: <[email protected]> > Subject: [Elecraft] K3 VFO tuning hash > > > Now that 6 and 10 meters have been open to Europe and Africa, I frequent > these bands for the first time in the six months of owning a factory built K3 > radio. > > What I've discovered and reported to factory tech support is a very noticable > hash noise > while in the receive mode with any bandwidth centered around 28.000 MHz to > 28.050 MHz. And, it is also > present while tuning RIT. It sounds like synthesizer switching noise and its > repetition rate increses when the VFO is set to fine > tuning. I do not hear it on any other band. I also don't hear it over the > entire 10 meter band, just the region as stated. > > Is this in other K3s or is there something going on that needs attention in > only my radio? I called factory tech support over a week ago. Since they > have not come up with an answer it seemed time to open it up to a wider group > of users. > > Thanks > > 73, > > John, W1QS > ______________________________________________________________ > 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
