Fluke Versiv, Руководство пользователя

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Chapter 3: Certify Coaxial Cabling
About Splitters
67

The
DIAGNOSTIC
tab shows fault information if the test failed,
and the HDTDR analyzer button, which you can tap to see the
HDTDR plot. The plot helps you find faults on the cable. The
HDTDR plot for coaxial cable includes limit lines and a
PASS/FAIL
result.

The overall result for the test:
The results exceed the limit.
The results are within the limit.
The selected test limit does not have a limit for the test.
The results are within the range of accuracy uncertainty
for the tester. See “PASS*/FAIL* Results” on page 49.
The measurement shown for the insertion loss plot is the worst
value if the test passed, or the worst margin if the test failed.

When more than one button shows at the bottom of the screen,
the tester highlights one in yellow to recommend which one to
tap. See “Buttons to Do Tests and Save Results” on page 17.
To do the resistance test continuously, select the test from the
TOOLS
menu. This function helps you locate intermittent faults.
About Splitters
If you get these results, there might be a splitter on the cable:
 The tester cannot find the remote.
 The tester looses communication with the remote. The test
might continue, then loose communication again as the
splitter interferes with the communication signal.
 The length test shows
End not found
.
 The resistance test shows an open.
 The HDTDR plot shows a reflection that has an unusual shape.
Because splitters can cause unreliable test results, you should not
do tests through them.