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Ralph,

I hope you don’t get tired of hearing from me every winter, but that’s when I go into “HF mode”.  Again this season the Isotron 20 comes through! This time I have a most unusual set-up. The antenna is mounted on a 6 ft metal pipe, insulated at the bottom to get proper SWR (!) and resting inside an aluminum window frame. The SWR is <2:1 across entire band with no tuner. I have a RF choke inline to eliminate those nasty RF burns. Working Canada and NW U.S today in lousy conditions with 100 watts.  Of course, I’m up 250ft which helps. I don’t expect miracles, but I’ve stopped wondering why the Isotron works and just enjoy working 20 meters.   Thanks as always.

Matt K9EMF