That was the only thing I could think of after reading your post. I am away from home and my K3 right now, So I can't dig it out and mess with it to see what messes it up.
On Wed, Nov 5, 2025 at 8:30 AM Curt Nixon <[email protected]> wrote: > 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] >> >> -- Jim K0XU [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]
