"Rick" wrote in message
...
In the spirit of trying to get something going on the subject of
antennas, and away from all the off topic posts......

Are you doing anything interesting with antennas?
For me, I have become interested in rhombics and am currently building
one.

As a no-code, I am my club's sole source of FD points for UHF/VHF. I have
beams for 2m & 70 cm, but maybe rhombics are better. From San Diego, most
of my DX FD contacts are in the same place: Los Angeles. I don't really
need a steerable antenna.

Impedance matching to a 700 ohm antenna seems to be a daunting task. If I
used a 4:1 balun could I connect two or three independently terminated
rhombics (one over the other) in parallel to the balanced side?

I also want to try a rhombic for UHF TV. True, this is not a ham project,
but hamming isn't my sole electronics interest. (Probably the same with
most of us.)

I also have a project for TV DX, which requires canceling out a co-channel
interference source. The QRM is 11 degrees off-axis at Channel 53. This
calls for yoking two antennas about 43 inches apart to create a deep null in
the direction of the QRM. I did one for Channel 36 at 90-degrees off-axis
and it works like a charm.