I am running the numbers on several 10 meter OWA 6 element antennas
with boom lengths of 24 to 26 ft. Tools on hand are "Yagi Analyzer",
"Yagi for Windows" by Dean Straw, and the spreadsheets by W6NL.
Several designs look promising, but I've gotten myself confused about
how to correctly model the clamps. The official Hygain YO files from
Roger Cox are not consistant as to equivalent diameter or length in
comparing the 203BA, 204BA, and the 205CA.
"What's the problem?" you say. Well, I'd like to use the inboard
sections of some 204BA elements for the driven element and the first,
close-spaced director.
An email to ARRL Technical Services was not enlightening, and
re-reading Jim Lawson's and Dave Leeson's works did not give me that
warm, confidant feeling that I'd like.
Anyone care to enlighten me with actual numbers, or websites??
Gud Lk in the contest!

Mike W5CHR
Memphis Tenn