[TowerTalk] Dipole resonates lower than expected.

[Tom Rauch]

> You know... I ordered the new Handbook & Antenna Book and
need to start
> reading... It's been too long since I've played with this
stuff! You are
> right, of course, the measurement problem you stated
reminds me of my dog
> chasing his own tail!

I only wanted to point that out because everyone always
measures X=0 in the shack and **assumes** X=0 in the shack
is the same as X=0 at the antenna.

X=0 (resonance) in the shack is only X=0 at the antenna
under very specific conditions that most people ignore.

The 5% change in length from insulation might indeed be
true....but it's also very important to remember we can't
really measure antenna resonance in the shack unless we know
a lot more than what a meter is telling us.

You received good answers, I just wanted to point out the
problem with making measurements of resonance at the shack
end of a feedline that has standing waves.

73 Tom