User Manual

Calibrating฀Length฀Measurements฀฀
61฀
Determining฀a฀Cable’s฀Actual฀NVP฀
You฀can฀determine฀a฀cable’s฀actual฀NVP฀by฀adjusting฀the฀
measured฀length฀to฀match฀a฀known฀length฀of฀cable.฀฀
To฀determine฀a฀cable’s฀NVP:฀
1 Connect฀a฀known฀length฀of฀the฀cable฀to฀be฀tested฀to฀
the฀tester’s฀twisted฀pair฀or฀coaxial฀connector.฀The฀
cable฀length฀must฀be฀as฀follows฀(as฀measured฀using฀
the฀tester’s฀default฀NVP฀values):฀
• Twisted฀pair, Cat 6A and below:฀34.4฀ft฀to฀
689.7฀ft฀(10.5฀m฀to 210.2฀m)
• Coaxial:฀40.3฀ft฀to฀807.9฀ft฀(12.3฀m฀to฀246.2฀m)
Tip:฀For฀maximum฀accuracy฀and฀adjustment฀resolution,฀
use฀a฀cable฀between฀45฀ft฀and฀70฀ft฀(14฀m฀and฀
21฀m)฀long.฀
Note฀
The฀cable฀must฀not฀be฀connected฀to฀a฀wiremap฀
adapter,฀port,฀or฀other฀device.฀
2 Turn฀the฀rotary฀switch฀to฀SETUP.฀
3 Use฀
D฀to฀highlight฀Length฀Calibration;฀then฀press฀
H฀or฀J.฀
4 To฀set฀the฀NVP฀for฀coaxial฀cable,฀press฀K฀
c.฀
5 Press฀H฀or฀J;฀then฀use฀D฀A฀to฀change฀the฀
NVP฀until฀the฀measured฀length฀matches฀the฀actual฀
length฀of฀the฀cable.฀
6 Press฀
H฀to฀save฀the฀NVP฀value.฀