Gareth, I had a similar problem when my K3 returned from the factory after a few updates. In my case, I had to press and HOLD the RX ANT button. Don't remember where I read this but it worked. Toggling this switch changes the Sub Rcvr between the main antenna and the receive antenna as the signal source.
The K3 is a remarkable flexible radio. With that flexibility comes complexity at times that is hard to fathom--at least for me. On Wed, May 27, 2020 at 9:50 AM Gareth M5KVK <gareth.m5...@gmail.com> wrote: > Great minds, Grant. That's my next step. > > As I said in the OP, this was a rig bought secondhand. > > Gareth M5KVK > > On 27/05/2020, 14:35, "Grant Youngman" <ghyoung...@gmail.com> wrote: > > Have you checked the installation of the receiver module? Meaning > that the two small riser modules that it plugs into are properly seated to > the main RF board and the KRX3. I had a dead sub-receiver problem once. I > had been in the radio at some point to install an update. When > reinstalling the KRX3, I had pinched one of the coax cables that’s in the > vicinity of the riser nearest the front of the radio and pulled the cable > out of it’s socket when reinserting the KRX3, far enough not to work, but > not so far that I noticed it until the next time I tried using the sub. > > Just one more idea of something to look at. > > Grant NQ5T > > > On May 27, 2020, at 9:21 AM, Gareth M5KVK <gareth.m5...@gmail.com> > wrote: > > > > I tried that, Richard. > > ANT definitely says MAIN but still no signal. > > > > Gareth > > > > On 26/05/2020, 18:40, "Richard Thorne" <rtho...@rthorne.net> wrote: > > > > Gareth, > > > > Try this. > > > > - Turn on the sub receiver by pushing sub > > - Push and hold B Set so the display shows b set > > - Be sure the ant shows Main and not AUX. If it shows AUX push > the ANT > > button to toggle between the two. > > > > May not be the problem but I've found for some reason my sub > receiver is > > on the Aux antenna. My rig doesn't have the ant tuner either. > > > > Rich - N5ZC > > > > On 5/26/2020 11:21 AM, Gareth M5KVK wrote: > >> Thanks, Richard > >> There is no ATU, so there is only the one ANT to select. However, I > have checked that CONFIG KRX3 has Ant=ATu (even though there is no ATU, > only this or BNC are offered as options) > >> > >> Gareth > >> > >> On 26/05/2020, 16:31, "Richard Thorne" <rtho...@rthorne.net> > wrote: > >> > >> Gareth, > >> > >> You probably don't have the correct antenna port assigned to > the sub > >> receiver. I'm not in front of my rig, but I believe you need > to push > >> and hold A/B (B Set) to get to the sub receiver, at that point > be sure > >> the correct antenna port is selected. > >> > >> Rich - N5ZC > >> > >> On 5/26/2020 10:05 AM, Gareth M5KVK wrote: > >>> Hi there > >>> I bought a s/h K3S a couple of years ago (SN 10901). It has a > KRX3A installed, but I’ve never tried to use it until now. When I enabled > the sub receiver this morning, I found I was getting no signal. > >>> > >>> I’ve checked various CONFIG settings and it’s set to use the MAIN > ANT and it’s AF is independent of the K3S. In an attempt to make progress, > I reviewed the installation instructions. > >>> > >>> Item 4, after enabling TECH MD, is Tap DISP and rotate VFO B to > display SYN1 and SYN2. I do not see these items. Any idea how to debug this? > >>> > >>> 73 > >>> > >>> Gareth, M5KVK > >> > > ______________________________________________________________ > > 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 ghyoung...@gmail.com > > ______________________________________________________________ > 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 clark.macau...@gmail.com -- 73, Clark, WU4B Little Pistol With Wires QRPARCI #10815 SKCC #3892 NAQCC #5055 CWOPS #1869 Collins Collectors #AC90-12432 Southeastern DX Club <http://www.sedxc.org> North Georgia QRP Club <http://www.nogaqrp.org> *"It is vain to do with more what can be done with less."* *Attributed to *William of Occam (1288 AD - 1348 AD) ______________________________________________________________ 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
