Cecil, read your post closely. then Read my post.

Antenna and antenna system are two different [read different] things.

A physical length of wire of dimension 'L' is 1/2 wave resonant at it's
fundamental frequency, 3/2 waves resonant, 5/2 waves resonant, 7/2 waves
resonant, at harmonics of the fundamental etc.

An antenna system is what connects the antenna to your radio in a manner
where your radio can deliver energy efficiently to the antenna. it
includes feedline, stubs, tuners, etc. these things are not part of the
antenna but are part of the antenna system.

Once again, the basic resonance of a wire is the basic resonance of the
wire. You can fiddle all you want with stubs, tuners, or what not, and
still not change the resonance of the wire.

A 100 feet long wire is 1/2 wave resonant at 4.68 MHz [depending on
which formula you choose]. You can tune it to transmit where you want.
But the wire is still resonant at 4.68 MHz while the antenna system may
be tuned anywhere between dc and light [hyperbole].

AK



Cecil Moore wrote:

Amos Keag wrote:

If the feed is 'changing the resonance' then there is a problem with
the feed!!


Not at all. As you can see at: http://www.qsl.net/w5dxp/notuner.htm,
I use "the feed" for the specific purpose of changing the resonant
frequency of the antenna system. The impedance transforming series-
section is really a series stub which resonants the entire antenna
system.