If you have an antenna analyzer that can measure complex impedance (as
in R +/- jX) and if you are willing to put a connector on one end of the
cable, I can tell you how to get an accurate length measurement using
TLW, the transmission line application that comes free with the ARRL
Antenna Book. You don't need an instrument with TDR capability (Time
Delay Reflectometer) to do it.
73,
Dave AB7E
On 1/12/2020 3:44 AM, Phil wrote:
I am involved in selling items to benefit the estate of a SK.
One of the items is a unused roll of 400MAX cable that is still
in the plastic cling wrap it was shipped in. I know there is
at least 100 feet of cable there but I think there is possibly
50 or even 100 feet more. I don't want to unroll the cable to
measure it and get it all kinked or dirty. The roll weighs
17 pounds. I've checked the DXE web site but can't find anything
that gives the weight per foot. The roll is approximately 8 inches
inside diameter, 16 inches outside diameter, and contains 55 to 60
turns. The packing label on the roll says DXE400MAXDCU200.
Can anyone help me with a good estimate of the length?
thanks, 73, Phil W5BVB
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