Since then I've moved the variable capacitor inside the panel and mounted it
to a ¾" think Plexiglas sheet mounted to the back plane with nylon bolts and
washers. There is a 1" air gap between the Plexiglas and the backplane. I
now have seen the 42+j0 ohms change to 45 - j11 ohms...that's the lowest
reactance I can tune the capacitor for. Not really sure if its +j11 ohms
or - j11 ohms but I assume if the reading was + j11 I could continue to tune
it out with the capacitor but I cant.
Does the capacitor not play well with a steel enclosure?>>>>
Any enclosure will change things, especially a metallic enclosure. Just
readjust the cap.
<<<<The other strange situation I'm experiencing is when I connect my Array
Solutions static bleed choke to the feed thru insulator at the outside of
the panel to ground the resonant frequency jumps to 2.014 MHz at 25 +j0
ohms...remove it entirely and I'm back to my 45 - j11 ohms.>>>
The choke is completely unnecessary with a shunt feed tower. It won't help a
thing, so leave it out.
73 Tom
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