Or even simply replace the antenna with the dummy load to make sure the tuner actually works remotely. It seems to me that some basic trouble shooting here might possibly supplant a whole lot of conjecture.
Dave AB7E On 11/9/2011 12:21 PM, Ron D'Eau Claire wrote: > Have you substituted your dummy load in place of the tuner at the antenna > and rechecked the SWR? That will identify any connector/coax/arrester > issues. > > Ron AC7AC > > -----Original Message----- > I have a weird problem that I could use help on. I have limited experience > with antennas, so the answer could be something simple I have overlooked. > > I am using a K3/100 with the ATU. I recently installed a 31 foot vertical > antenna with ground radials and a balun at the base. The MFJ analyzer shows > an SWR (at my K3) below 1. 3:1 on 40M and near 15M as you would expect. SWR > for the other bands are much higher, about 4:1 for 17, 12, and 10. But, the > K3 tuner trims up fine. I understand the efficiency is hit, but it does > work. On 20M, the SWR is near 6:1. Again, I can tune it with the K3, but I > am not getting out well. These results are the same with the Electraft BL2 > balun OR a DX Engineering line choke installed. There is about 80 feet of > LMR-400 between the rig and the antenna. I also have a static/lightning > arrestor in line. > > In doing some research, it seems that a remote tuner at the antenna base > would be a more efficient system. I purchased a remote tuner kit from DX > Engineering, that includes an MFJ 927 tuner at the base (along with a mount > and a line choke). I bypassed the internal K3 tuner. With the remote tuner > in place, the SWR HI message is displayed on my K3 when I try to transmit > most of the time, and on all bands. The tuner was checked out by MFJ under > warranty, and came back fine. I reinstalled it, and have the same > problem... > > Thanks in advance. > > 73s > > Randy K6CRC > K3#2051 > k6...@arrl.net > > ______________________________________________________________ > 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 > ______________________________________________________________ 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
