Hans - Try:
"Designing Trap Antennas: A New Approach" by Yardley Beers W0JF Ham Radio
August 1987"
He also had a couple of articles in QEX. A search on the ARRL periodical index
should lead you to them.
You don't need the article though. The trap should be resonant at the geometric
mean of the higher and lower frequency, trap = sort(floe*fhigh). The antenna
length should be what a dipole is at this geometric mean frequency and the
traps should be in the center of each leg.
There are other variations where the trap is not in the center of each leg. I
think the QEX articles discuss them. - Duffey KK6MC
--
KK6MC
James Duffey
Cedar Crest NM
>
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