[Antennas] Re: Your Antenna "pre-selector" Desires....

[Cletus W Whitaker]

de WB2CPN  South Central Pennsylvania   2002.05.31

I have the ICOM AH-4 at the end of a 70' horizontal wire, (well stem
ground), and the AH-4's tuning process very nearly terminates the
coax at 50 Ohms.  There is a minuscule VSWR at the TS-940S output.
For the hell of it I can let the TS-940S internal tuner have a go at
reducing the VSWR, but it's hardly worth the effort.  Generally, if
you're going to use lumped constants to make a wire(s) look like
50 Ohm j0 then try to put them all in the same place.  You'll have
a box with your transmitter on one end, and the antenna wire(s) on
the other, and stay out of the box while you are on the air. As George
says, there are dangerous voltages in there.    73  Clete