Fluke DTX Series - The HDTDR Analyzer; Running the HDTDR Analyzer; Recognizing Faults on HDTDR Plots

DTX Series CableAnalyzer
Technical Reference Handbook
4-12
The HDTDR Analyzer
The HDTDR

(High-Definition Time Domain
Reflectometry) analyzer plots the locations and
magnitudes of reflections caused by impedance
anomalies. The analyzer, along with the tester’s
automatic diagnostics, helps you isolate the causes of
return loss failures.
Running the HDTDR Analyzer
After an Autotest, you can view HDTDR results only if the
Autotest failed.
To see HDTDR results for failed Autotest, select HDTDR
on the Autotest Summary screen.
To run the HDTDR test as a single test:
Note
Though you can run the HDTDR analyzer
without a smart remote, the following steps
assume you are using a remote.
1 Turn the rotary switch to SINGLE TEST and verify
that the test limit and cable type are correct. Change
them in SETUP if necessary.
2 Attach the appropriate interface adapters to the
tester and smart remote.
3 Turn on the smart remote; then connect the tester
and remote to the cabling.
4 Turn the rotary switch to SINGLE TEST, select HDTDR
Analyzer; then press
P.
5 To save the results, press
N. Select or create a cable
ID; then press
N again.
Note
If Store Plot Data is set to No, the HDTDR plot
will not be included in saved results.
Figure 4-3 describes the HDTDR analyzer.
Recognizing Faults on HDTDR Plots
Figure 4-4 shows how some common faults appear on
HDTDR plots.