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Old November 15th 04, 04:26 AM
Tam/WB2TT
 
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"Dr. Slick" wrote in message
om...
'Doc wrote in message
. com...
Dr. Slick wrote:
"(1)A properly tuned and positioned dipole will
be resonant at only one frequency.
(2)Double-dips are a bad sign, and the return loss suffers."

(1) - Nope, just not true.
(2) - Not true either. (see #1)


What i meant to say was, a properly tuned
simple dipole will be resonant at only one
frequency and it's harmonics.

My double dips were not harmonically related.


With the two 'dips' not being harmonically related, it
appears that there is some 'other' reason, the feed line
for one, or something near the antenna (a person for instance?).
'Doc



raising the height of the dipole above the ground
from 3.5 to 6.5 feet was one of the things i did to
fix this problem.

The other one no one has guessed yet...


S.

This sounds like 20 questions. You are not telling us what you have. One
would not expect somebody to measure an antenna at a height of 3 feet. A
dipole would have an impedance of around 75 Ohms, which would give an SWR
into 50 Ohms of around 1.5:1 Are you using 50 Ohm coax and a 50 Ohm meter?
Is there a gamma match, or such, to adjust? Is it a dipole or a folded
dipole? Is there a balun? Did you buy the antenna or build it (I suspect the
intent would be different)? Since you are using an SWR meter, are you
putting enough power into it to get out of the nonlinear range?

Tam/WB2TT