[TowerTalk] Inv Ell Bandwidth

[Jim Jarvis]

Here we go again... so which is it? Inverted L's have plenty of bandwidth or
Inverted L's little bandwidth???

-0-

The answer is... the perceived bandwidth of an Inv. Ell, or a full sized
vertical,
for that matter is what it is.... depends on the diameter of the radiator,
plus
the degree of swamping you get by having a crappy ground.  That is, your
power is
divided between the radiation resistance of the antenna, and the resistance
of your
ground system...the missing half of the antenna.  The worse the ground,
the broader the 2:1 vswr points will appear to be, because a greater % of
the power
is going into the ground system.

If the vertical is fat, the bandwidth is greater.
Coax is fatter than #12.
ergo, for a given ground system the bandwidth is greater.

n2ea