nbr wrote:
W5DXP wrote:
The center of the "phasing line" on a half-square is a
maximum voltage point but there is nothing to keep that
horizontal wire from radiating. At a TOA of about 65 degrees
the broadside horizontal radiation and vertical radiation of
a half-square are about equal at about -9 dBi.

I don't think you're suggesting the horizontal component is cancelled
out??? So in truth the 1/2-square may perform DX best at low angle TOA
broadside to the two verticals, but may also have high angle lobes
from the horizontal wire (effective close-in cloud-warmer)?

Yes, above a TOA of about 65 degrees, the radiation is primarily
horizontally polarized and there is enough to make some NVIS
contacts on the lower bands. You get an interesting pattern if
you feed it 1/3 of the way down the horizontal wire. You get some
fairly good high angle radiation that can help fill in the nulls
in the half-square patternm i,e, the coverage doughnut gets bigger.
--
73, Cecil, W5DXP