thanks for reading this. i have a 205ca that is driving me crazy. i set the
antenna for low phone, 14.150 mhz. on the ground with the antenna on saw
horses, the mfj 259 showed the resonant freq to be 13.650mhz.
with the antenna at the top of the tower 80ft the resonant freq never
changed, only the swr got much better. i have checked and rechecked all
measurements at least six times. the only way to get the resonant freq where
it belongs is to shorten the driven element up to where it is shorter than
the first director. i read on e-ham where a guy put one together but couldnt
get it up the tower in time for a contest, so left on the saw horses and
worked a hundred contacts. i recently redone a 40 meter beam and set it to
7.050 . on the saw horses the resonant freq was correct just the swr high. i
pulled up on the tram about 35 ft and the swr dropped to 1.5. this is the
way i expected the 20 meter beam to work. i have tried a different balun, no
balun and a new pig tail. even checked the mfj 259 to make sure it was on
freq. any ideas???
thanks in advance,
ed n4ek
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