OMNISCANNER User Guide
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Selecting the correct cable type will ensure accurate length measure-
ments. If you cannot find or do not know the name of your cable
manufacturer, simply select a cable from the Generic folder, or create
a new cable.
Press (Delete) to permanently remove a custom cable. Note:
Default cables cannot be removed.
With a twisted pair or a coaxial cable highlighted, press
(Edit) to edit an existing custom cable. Cable Name, NVP, or Impedance
can be changed.
Note
Default cables cannot be edited.
With a twisted pair or a coaxial cable highlighted, press
(New) to create a new cable based on the NVP and Impedance values
of the highlighted cable. Name, NVP, and Impedance are definable.
Note
A new or edited cable will be saved in the Custom Cables folder.
For an accurate Length test, the NVP (Nominal Velocity of Propagation)
must be set correctly. The value is usually specified by the cable vendor,
and OMNISCANNER has a large library of cables with the manufacturer’s
specified NVP.
To determine the NVP of a cable with a known
length, press (Measure) to capture the
length of the cable using the displayed NVP. Use
the ê to highlight the NVP: field and press
ENTER. Use the é or ê arrow key to increase or
decrease the value by 1% (percent) and adjust the
NVP until the known length is displayed. The
Length: changes accordingly.
Note
The known cable must have a length of at least
50 feet or 15 meters.
To change the Impedance; use the ê to highlight
the field and press ENTER. Use the é or ê arrow
key to select the appropriate Impedance in
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