Mike and the group, I am currently routing heavy duty 300 ohm twin lead from a 5/8 leg 20m antenna, thru a slot cut into some foam pipe insulation that acts as a panel in the bottom of a aluminum sash window. The window has aluminum sill, and frame, and individual panes of glass with aluminum sub frames. Cross the metal at right angle does not affect the normal operation of my B&W tuner, and I am using the internal balun of this tuner and getting normal loading, and good signal reports with only 20 watts SSB, from the rig I use.
If you cross at right angles and twist the feeder outside along its run, interaction with conductors is minimized and balance is preserved adequately for use with the tuner. Stuart K5KVH _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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