Looking for suggestions with a Cushcraft A3 problem. Up till this year it
worked well. The swr was minimum at 14.1, 21.2, 28.4. Now it resonates at
14.5, 21.2, 28.0.
Compared to a C3E on another tower at the same height, 35', 15 and 20M are
comparable. On 10M, signals are down from 4-6 s-units on the A3 compared to
the C3! The element dimensions have not changed. I would guess it would have
to be a 10M trap. What else could it be? But which trap(s)? Puzzled that 15M
resonance didn't change.
Was thinking of using a dip meter to check the traps.
Any ideas or have you seen a similar problem?
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather
Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions
and ask for Sherman, W2FLA.
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