"*" wrote in message ...
They make an instrument called a Time Domain Reflectometer,
you hook it up to transmission lines and it sends out a pulse
and times how long it takes to get back.
The time it takes, reflected pulse polarity, and height says a lot about
the
line.
Used for finding faults on telco/cable lines.
Does the same thing with RF lines.
Matched well, no pulse, but you can even see connectors on some of these
TDR's
Googleit, too

Sorry, *, won't work. TDR only good on wide band systems. Too messy
for this kind of antennas.
--
Steve N, K,9;d, c. i My email has no u's.