RadioBanter - View Single Post - Current in antenna loading coils controversy

November 18th 03, 12:45 AM

(Richard Harrison) wrote in message ...
Art, KB9MZ wrote:
"I can up my efficiency to 50 per cent by hanging a wire down from the
dipole ends which I am not comfortable about---."

Why would Art be uncomfortable about improving efficiency by hanging a
wire down?
Maybe he does not believe his model is correct. Maybe he doesn`t want
some directivity change that comes with hanging a wire down. Maybe there
is some physical problem with hanging a wire down.

The problem with a loading coil is increased loss. Capacitance is
usually low loss.

Richard
seem like a sentence got dropped,
What is it that you want to know ?
Are you suggesting using a capacitive coupling instead of
the use of an inductor.........
I think you need to rewrite the post so I can see what your needs are
Regards
Art

As Yuri, K3BU has noted, there is much to be learned from reading
ON4UN`s Chapter 9 about antenna loading even though everything regarding
vertical antennas doesn`t translate readily to horizontal antennas.

ON4UN includes horizontally polarized antennas in "Low-Band DXing". It`s
easy to read, well illustrated, and full of good references. It helps if
you want to design your own antenna because it tells why as well as how.

Best regards, Richard Harrison, KB5WZI