Hi Jim If you mean in config, then yes I did. I get no errors or other indication that something is wrong. Rx noise similar to main rx that responds like I expect with the rf gain and volume.
Thanks. Curt KU8L On Wed, Nov 5, 2025, 9:31 AM Jim Rhodes <[email protected]> wrote: > You did turn the sub on in the menu, right? > > Jim K0XU > [email protected] > > On Tue, Nov 4, 2025, 10:32 Curt KU8L via Elecraft < > [email protected]> wrote: > >> Good Morning Folks >> I have finally added a couple of K3 to the contest station lineup here >> and just coming up to speed on how to use them. Had a K2 for a while >> but big difference! >> >> K3 100W, KAT3, 2m Module, Kiob, ser 00872 MCU vers 5.62 Has original >> Synths and Sub rcvr . >> >> Problem is no signal thru SUB. It appears to be working because I hear >> normal background noise which comes up with RF gain and audio prperly >> splits to right and left headset channels. >> >> I went thru getting my head around the options for SUB antenna sources >> and after deciding I definitely wanted to use the MAIN shared option I >> opened the unit to check how the SUB aux antenna was connected. Removed >> the TMP jumper to the KAT3. >> >> Set config to ANT=BNC, pwr cycled, and selected BSET RX ANT is set to >> MAIN. My understanding is this should share the main ANT1 or ANT2 >> selection of the main rx with the SUB. >> >> All else looks to be in order inside but still no Signal from SUB. >> >> Before I remove the 2mtr unit and lift the SUB out to be sure the SUBIN >> connections are OK looking for any other things to check. This was a kit >> build but had sat unused for a couple years after owner went SK. Clean >> and looks good inside but no idea if it ever worked >> >> Final thought was to try replacing the TMP connect to SUB Aux and KAT3 >> and reconfig for using the non tx ant to verify the SUB operation and >> perhaps narrow the field to looking at the SUBIN connect and the Jumper >> W4 situation. >> >> Any ideas on where to go next with this? >> >> Thank you in advance for any advice. >> >> Curt >> KU8L >> >> >> >> -- >> This email has been checked for viruses by Avast antivirus software. >> www.avast.com >> ______________________________________________________________ >> 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]
