You might try un grounding the tower and tieing it to the antenna feed
point. The grounded tower may be confusing the tuning so give that a
try. 73 Bob W1XP
On Fri, 7 Jul 2006 03:24:09 -0000 "J. Allen" <[email protected]>
writes:
> The tower is grounded at its base at this time, but is up on
> insulators and
> can be ungrounded easily by disconnecting a 1/0 grounding conductor.
>
> The vertical portion of the antenna is a piece of coaxial cable
> spaced about
> 4 feet away from the tower.
>
> Still no luck finding the first resonant point. All points have been
> checked
> from 20 kHz through 250 kHz. It acts like I have a big capacitor
> connected
> to the end of the coax. At the base of the antenna, I have
> installed a
> relay and can switch between the dummy load and the antenna base
> loading
> network. Whatever is wrong is wrong on the antenna side of that
> relay. If
> the dummy load is put on the other connector it acts as a dummy
> should, so
> the problem is not in the relay or its connection. If I substitute
> a lumped
> constant for the antenna, the traces are as expected with the scope.
>
> I just do not seem to be able to find a resonant point using a
> frequency
> divider and tiny amp. The scope traces are either sine wave traces
> but with
> the voltage and current out of phase, or else really convoluted
> forms which
> are in phase.
>
> I am still at step one. How to I get the two waveforms to coincide
> and at
> the same time have them look like sinewaves?
>
> Any ideas where to go with this now?
>
> "J"
>
>
>
>
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