ml ha escrito:

hi

i was sorta just wondering shooting from the hip (ie not a exact
calculated ans) what happens if you put up a nice inverted v supported
by a center pole of fiberglass vs a metal pole

a) the radation pattern

b) overall swr's and efficiency


big small or no diff?

When you feed your (halve wave) inverted V in the middle (top) via a
balun, there will be no difference.

When you feed it at one end (with respect to ground) there will be
some asymmetry in the antenna causing some net effect in the metal
post. As long as the wire does not touch the post and the post is in
the voltage minimum, the effect on the radiaton pattern and efficiency
is negligible. Maybe you have to adjust the length a little bit.

Wim
PA3DJS