Updated KY6R Switched Matching Circuit

Per Ed, AG6CX’s suggestion, I’ve moved the 1:1 current choke so its the input for all paths in the switched circuit. Another 1:1 current choke should be added behind the tuner. It simplifies the circuit – two relays can be eliminated. The main thing I wanted was to make sure there are never two incoming feeds attached to the vertical and ground at the…

Top Band Common Mode Quick Fix

I was able to move the top hat wire on the Inverted L so that it now heads East instead of North, which on 160M offers these benefits: The direction will be better for working the last 10 that I need. It is a good path to the Caribbean and most of Africa, which are my “night time” Top Band direction. Using RBN, I’m…

The RFI “Sleuth”

In the last year I made two changes to my antenna farm that introduced RFI issues. Not RFI in the shack, but RFI that I am causing that: Only on 160M I all of a sudden cause my Trane Heater blower to turn on and off for short periods – just enough to blow cold air through the house and make fan noise Turn…