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 [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
