Buck wrote:
. . .
I didn't clarify myself, but the gap technology (I should have used
lower case) isn't necessarily the same as the GAP brand. I couldn't
find the book I have it in, but it is where a wire resonant on a
particular frequency brought close to another antenna will match the
system and radiate efficiently (I don't know how efficiently.) (this
is an oversimplification of what I am describing.)
. . .

That sounds like the method patented in 1996 by Gary Breed, K9AY (U.S.
patent #5,489,914). He allowed the patent to expire rather than renewing
it, so it's now in the public domain.

See
http://patft.uspto.gov/netacgi/nph-P...y+AND+IN/breed

(You'll probably have to paste that back together. Or just go to
http://www.uspto.gov and look it up by patent number.)

Roy Lewallen, W7EL

Roy, it is a mistake to consider one element of a radiating system as being
distinct from another. Reflectors and directors do not operate
independently of the embedded 1/2-wave dipole. And, for example, the
universally-made error of treating radiation from the feedline as being
independent of that from the antenna is a serious matter. Aggravated by
ignoring the choke location if there is one.

Similar (greatly prolonged) educational mistakes lead to serious
misunderstanding the purpose of the so-called SWR meter - the very last of
the meters remaining on the front panels of our commercial black-box
transmitters.

They will soon go.

But what does it matter. It's only a hobby. I still get my pleasures from
it. And no doubt so do you.
----
Reg, G4FGQ