Fluke CableAnalyzer DSX-602, Руководство пользователя

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Chapter 3: Certify Coaxial Cabling
About Splitters
61
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The DIAGNOSTIC tab shows 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 41.
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 20.
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.