Learning The Nvp Of A Cable - Agilent Technologies WireScope 350 User Manual

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Learning the NVP of a Cable

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The WireScope can determine the NVP (Nominal Velocity of
Propagation) of a cable, for use in certification testing. NVP is expressed
as a percentage of the speed of light. you must use a sample of the cable
at least 50 feet (15 meters) long. Longer cable samples produce more
accurate results.
To learn the NVP:
1 Measure the length of a sample of the cable.
2 Connect the cable sample to the WireScope. Do not connect the
DualRemote.
3 On the Expert mode Tools menu (see page 6-18), press Learn NVP.
The Learn NVP screen displays.
4 Press the Cable Length field. The numeric keyboard opens.
5 Press the backspace arrow to erase any value in the number field,
then enter the length of the cable sample, in or meters. Press OK. The
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