Fluke Versiv, Руководство пользователя

Страница: 76 / 260

Versiv Cabling Certification Product Family
Users Manual
62
Table 3. Settings for Coaxial Tests
Setting Description
Module
Select
DSX-5000 CableAnalyzer
.
Cable Type
Select a cable type that is correct for the type you will
test. To see a different group of cable types, tap
MORE
,
then tap a group. To make a custom cable type, tap
Custom
in the
Cable Groups
list.
NVP

Nominal velocity of propagation. The tester uses the NVP
and the propagation delay to calculate the length of the
cable.
The default value is defined by the selected cable type
and is the typical
NVP
for that cable type. To enter a
different value, tap the
NVP
panel, then tap or
on the
NVP
screen to increase or decrease the value.
To find the actual value for a cable, connect a known
length of the cable to the tester, tap
MEASURE
on the
NVP
screen, then change the NVP until the measured
length matches the known length. Use a cable at least
30 m (100 ft) long.
When you increase the NVP value, the calculated length
increases.
Test Limit
Select the correct test limit for the job. To see a different
group of limits, tap
MORE
, then tap the name of a
group.
Store Plot Data
Off :
The tester does not save plot data for insertion
loss or for the HDTDR analyzer. You can see the plots
before you save the test and exit the results screen. The
saved results show insertion loss measurements in a table
and do not include the HDTDR plot.
On :
The tester saves plot data for the insertion loss
test and for the HDTDR analyzer.