Kevin, KD5ONS wrote: I have a fancy switch for A/B antenna testing for coaxially fed antennas but do not know what folks use for antenna switches with antennas fed by ladder lines. I want to compare a 160 meter full wave loop fed with homebrew ladder line to a G5RV fed by 450 window line. Any suggestions?
----------------------------------------------------------- One of the problems you run into A/B testing is that you can't wait for a re-tune. Any delay more than a fraction of a second is too long under most conditions unless you're working on a very long wavelength (160/80 meters) and testing ground wave signals. So the smart thing to do is to put a proper matching network at the end of each ladder line, then switch the 50-ohm coaxial links to the rig. If you're not sure of your matching networks, reverse them after collecting data and make sure you get the same results. Ron AC7AC _______________________________________________ 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
