velocity factor, balanced line
On Tue, 06 Apr 2010 01:26:16 GMT, Owen Duffy wrote:
Bob wrote in
:
On Tue, 06 Apr 2010 00:16:56 GMT, Owen Duffy wrote:
...
I have had sucess with placing a balun of a string of ferrite cores
over the line.
That means literally threading some suitable ferrite toroidal cores over
the transmission line you are measuring.
If you add a separate balun between the analyser and the cable under test,
you introduce an unknown component that will probably disturb your
readings.
Owen
Another question -- I'm thinking of cutting a 10-foot section of
balanced line to test. Should I count the bared pigtails of the line,
which I will attach to the analyzer's coax output, as part of the 10
foot length? Or just count that part of the line where all insulation
is in place?
Bob
k5qwg
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