Yes, Elecraft will supply the mod, and if I recall, it is pretty easy to install. I think it was a matter on soldering on one or two small parts.
Jim Bennett / W6JHB Folsom, CA > On Dec 11, 2016, at 8:54 AM, Mark E. Musick <[email protected]> wrote: > > I have a K3S and the signal is at 28004.15. It is coming from the KAT500. > The signal is there even when the KAT500 is turned off from the front panel. > It vanishes when the KAT500 is disconnected from its power supply. > I seem to remember a discussion about this before, but I never checked my > KAT500 for the symptom. > Jim, what was the mod? I assume it is something Elecraft supplies and we can > install it ourselves? > > Mark, WB9CIF > > -----Original Message----- > From: Elecraft [mailto:[email protected]] On Behalf Of Mike > Harris > Sent: Sunday, December 11, 2016 1:24 PM > To: [email protected] > Subject: [Elecraft] Fwd: Re: K3 signal at 28004 > > > > > -------- Forwarded Message -------- > Subject: Re: [Elecraft] K3 signal at 28004 > Date: Sun, 11 Dec 2016 10:23:38 -0300 > From: Mike Harris <[email protected]> > To: James Bennett <[email protected]> > > I have that signal on my K3 without any other Elecraft peripherals wrapped > around it, internally it is pretty well stuffed with options. > However, I have installed the K3s KIO3B and KXV3B and observe the following: > > With the antenna connected and using the 500Hz 5 pole CW filter if I tune > off 1kHz and set the dBV metering to 0dBV+/- on the noise floor when re > tuning to the signal I see 3dB+/- increase. > > Enabling PRE 1 and re zeroing the dBV reading on tune increases to > +11dBV+/-. > > Enabling Pre 2 and re zeroing the dBV reading on tune the signal has > vanished. > > Pre 1 and Pre 2 are not co located and it is possible that layout is > determining what is being picked up internally. > > Maybe a K3s owner would like to report the presence or not of this signal. > The K3s RF board has apparently been redesigned making it quieter. > > Cycling the preamps on an weak external signal coming in off the antenna, > results in the expected changes in signal and noise, that is when Pre 2 is > enabled the external signal doesn't vanish. > > This will need to be re visited using my XG3 on 1uV to eliminate QSB > effects. > > Regards, > > Mike VP8NO > >> On 11/12/2016 02:51, James Bennett wrote: >> Hank - I had that same signal at 28.004 and it was caused by my KAT500, as > I recall. Elecraft has a fix for that - simple mod to the KAT500, if I > recall correctly. Do you have a KAT500 and have you possibly removed power > from it? If so, that's probably where your signal has gone. Just a guess.... >> >> Jim Bennett / W6JHB >> Folsom, CA >> >>> On Dec 10, 2016, at 5:30 PM, HankP <[email protected]> wrote: >>> >>> Ok I give up - I always have a strong signal about 28004 on my K3 and >>> it was there this morning just like always and most all day - now its >>> GONE and the rx seems like its still working normally -107 dBm on the >>> P3 for the 1 uv in . TX ok too. Just no 28004 ??? What is the magic >>> ?? Hank K7HP > ______________________________________________________________ > 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] ______________________________________________________________ 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]
