Thank you for the responses and suggestions: 1.) Ran the ant coax thru the balun directly to the K3- SWR 4.2/1 2.) Ran the ant coax thru the LDG 600 Pro bypassing the amp- high SWR 3.) When I hit the "tune" function on the LDG, I am getting from the tuner a message "ERR_NO_RF_" blink once warning
The only thing I can think of the LDG has an internal issue, everything else seems correct…I had the exact same set up on my prior rig, same coax etc….worked like a charm…I am beginning to think it is the tuner… Any other thoughts….I cannot believe I set a config by accident internal within the K3 to cause this issue… My very best to all, George On Nov 6, 2013, at 5:46 AM, Don Wilhelm <[email protected]> wrote: > George, > > What happens when you transmit into a dummy load? > What happens if you connect the K3 directly to the tuner (remove the amp from > the path of coax)? > > If my understanding of your setup is correct, the K3 will indicate the SWR it > sees into the input of the amp. > OTOH, the amp sees the SWR at the input to the tuner. > > It sounds like you may have a problem with the tuner or the amp or the coax > between the amp and tuner. > You could also have an RF feedback problem that is causing your SWR readings > to be crazy. > Some work with an antenna analyzer may be helpful. > > 73, > Don W3FPR > > On 11/6/2013 12:17 AM, George Pontiakos wrote: >> Out of the box, fired 7729 up…set the configuration to the quick start >> (which means all I did was select the external spkr set to 1). running thru >> a LDG AT600 pro auto tuner…and an AL-811… >> >> All ran fine, great report across the bands…called Dave at Elecraft for some >> help on setting the Sql to the RF collar…great accessibility and customer >> service…. >> >> Came back from dinner….high SWR (ant is a Cobra Senior) >> >> Nothing else changed…but I get untransmittable SWR off of both >> dipoles….really high….I tried the following: >> >> 1.) Checked against both antenna's…both way high >> 2.) Switched Baluns….same result >> 3.) Switched Ant on the LDG…no joy >> 4.) Tried all Bands with the Tune press against both Ant…no joy >> 5.) When I flip on the Amp…running 35 watts…the SWR's on the LDG show >> pinned…on the K3 display show @ 1.2… >> 6.) Receive works great >> 7.) Replaced the coax from the K3 to the Amp… >> 8.) Cut and restripped the ladder line >> >> >> >> Receive is fine….cannot transmit since the simple allocation of the RF >> collar to the SQL function… >> >> > > ______________________________________________________________ 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
