Jimmie D wrote:
"Tom Donaly" wrote in message
t...
Cecil Moore wrote:
Tom Donaly wrote:
And, if the total electrical length isn't 90 degrees, you
add a few degrees to the loading coil to make it come out right.
Very ingenious.
Adding or subtracting loading-coil degrees is what
happens while one is tuning a screwdriver antenna.
At resonance, the screwdriver is electrically very
close to 90 degrees in length.
Suuurrrre it is. You've got 90 degrees on the brain, Cecil.
Next, you'll be talking about 90 degree equilibrium.
73,
Tom Donaly, KA6RUH

I must be wrong too which doesnt surprise me.

Are you saying that if I put a center loaded antenna on my trucks tool box,
tune it to reonance at some freqency then the antenna is not electrically 90
degrees or some integer mutilple of 90 degrees in length at that frequency.

The concept that a resonant antenna could be some other electrical length is
something new to me as I thought this was the defintion of resonance being
equivalent to saying the feedpoint impedance is non reactive.

Jimmie



Slap it on your truck, and tell us at what frequencies it resonates.
Can you get it to resonate at odd multiples of its fundamental frequency?
73,
Tom Donaly, KA6RUH