I'm wondering if someone can suggest a method, not involving using an antenna analyzer, to gradually construct this antenna so that it matches on all three bands?
I began by putting it together with the measurements suggested in the manual, and it didn't match at all on 20, and barely on 30.
Then I started again, tried a piece for just 20, got a match. Added a piece for thirty, and Trap A, and got a nice match on 30 - but no match on 20.
Help!
Lloyd K3ESE