Roy, That goes to prove once again that "my feedline tunes may antenna" due to the transformer effects of the feedline length.
The major problem with a multi-band antenna is finding a feedline length that provides an adequate match for the tuner on all bands - but I wonder just how high the SWR is on the RG-8X and how much signal is getting lost in that feedline. 73, Don W3FPR > -----Original Message----- > Earlier I had stated my KAT100-1 was displaying random SWR LEDs > on 30 meters. My antenna is a Carolina Windom 80 with > approximately 70 feet of RG8X coming off the bottom of the lower > balun to the shack. (There is an additional 22 feet from lower > balun to the off-set center conductor.) A light bulb turned on > in my head and told me to try some extra length of coax on the > feed line. I added an extra 4 1/2 feet which the KAT100-1 really > liked. Now it tunes 1:1 SWR on all bands and the KAT100-1 works > to perfection (only the leftmost green LED lights up). The Bird > 43 wattmeter between the KPA100 output and KAT100-1 input > verifies this. Sometimes a simple solution is right under your > nose. Roy Morris W4WFB _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
