[Elecraft] trap dipole?

Jeff Burns [email protected]
Thu Oct 24 22:26:01 2002


I have been using a wire antenna running out form an old TV tower. The feed
line is 0.5 inch CTV hard line, and I use the tuner in my K2 to tune the
wire. This works but I have problems with the feed line radiating on 40m,
and the losses due to SWR are more than I like.

I am considering putting up a trap dipole. Since I already have the coax in
place it seams like a better idea than an open wire feed doublet. At my QTH
it will not be possible for the two halves of dipole to be symmetric. One
side will be high and straight. The other side will slope down sharply and
the end will have to be bent at an angle.

How hard is it to tune a trapped dipole that is not symmetrical? Is a
ready-made product like the Alpha Delta DX-LB Plus worth the money? Any
other commercial antennas that I should consider?

Jeff Burns

AD9T