Well sayed and easy to demonstrate.
A surplus thermocouple ammeter will indicate the current flowing,
either in the a metal screen just below an antenna or in a set of
radials that extend away.
Users with inductive antennas, i.e. some inverted L or top loaded
structures should be aware that their radials should extend more than
with classical 1/4 or capacitive (short) antennas.
73,
Mauri I4JMY
>
> A big very wide conductor or screen near the antenna, or even several
> of them sticking out 1/10th of a wave, does NOT make a decent ground
> system. 5,280 feet of wire in a shoe box is still electrically a shoe
> box-sized one-foot ground, not a mile of ground.
>
> That is the important point.
>
>
>
> 73, Tom W8JI
|