On Tue, 28 Nov 2006 14:47:29 -0800, Richard Clark
wrote:


So that leads to my question: How do you shunt feed a 28 foot
vertical?

For 80M? About a 1000pF in series with the added wire. This still
says nothing of the resistance being sub 1 Ohm IFF your gamma wire is
on par with the diameter of the vertical element. On the other hand,
if it is very much thinner (and using half the capacitance), it stands
to elevate the resistive portion (to 30ish Ohms) into a match.

A more complete specification would tighten up the variability in
this.

73's
Richard Clark, KB7QHC
I will pursue your suggestions.
John Ferrell W8CCW