"Ian White wrote
But the original questioner wants to measure what's *really*
happening.
========================================

But the original questioner can tell what's *really* happening just by
inspecting the antenna and feedline. He doesn't need any electrical
measuring instruments.

Of course, it may be in the middle of the night, in which case it
would be best to wait till the sun comes up.

Or he could rely on his memory of how he installed the antenna.

The trouble with you experts is that you overcomplicate matters and
make quite simple, obvious things appear to be mysterious.

But you have to justify your existence in one way or another. smiley
----
Reg.