Dear Rick:
OK. Your vertical antenna certainly picks up a lot of stray RF.

However, one of the beauties of using a network analyzer is the ability
to characterize the transmission line (even 1000 feet of it) and a filter
that is between the network analyzer and the antenna, AND THEN to have the
effects of all of the stuff between the analyzer and antenna removed so as
to leave the properties of the antenna.

One has to measure the "stuff" (transmission line +) with the "stuff"
disconnected from the antenna. Even if you went out to the antenna, you
would need (temporarily) to disconnect the "stuff" from the antenna.


This scheme really works. One has some front-end-load required in order
to characterize the "stuff," but then it is straight forward.

73 Mac N8TT

--
J. Mc Laughlin; Michigan U.S.A.
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