schreef in bericht
oups.com...
On Oct 2, 2:06 pm, "Jimmie D" wrote:


The small theroretical gain advantage that a 5/8wl radiator has over a
1/2wl
radiator is dependent on it having a very good counterpoise. However one
may be able to fabricate a 5/8wl antenna with a couterpoise matched to
the
feedline with a stub made of metal tubing.

Jimmie
The best "counterpoise" for a 5/8 radiator is a set of 5/8 radials...
But in that case, it's more of a collinear.
Myself, I think a 5/8 radiator should always be used with a 5/8
lower section of you want the full performance. IE: dual 5/8
collinear.
Anything else is a perversion... :/
My 2nd choice would be to use 3/4 wave radials.
1/2 wave radials would be useless.
1/4 wave radials are semi useless, and give a lousy pattern..
MK


In my search on vertical antennas I also found a option to add on a 1/4 wave
element a 5/8 element. This needs a phasing coil?
I also found a 5/8 element mounted over a 1/4 innerelement.. ?

But wat is the best for homebrew, and a few dB gain?