Fluke Networks CertiFiber Pro Users Manual - Manual (Page 159)

Chapter 5: How to Diagnose Copper Test Failures
The HDTDR Analyzer
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 Tap to see help for this screen.
 The Value is the value of the return loss at the cursor’s position.
The value is the percentage of the signal reflected back to the
main tester. If the plot shows all cable pairs, the value shown is
the largest of all the pairs.
The tester adjusts the values of return loss for insertion loss so
that the plot shows the values as they are at the sources of the
reflections.
 To see the plots for individual pairs, tap or . To select pairs
to show on the plot, touch or for one second to see the
SELECT PAIRS window. Select the pairs you want to see, then
tap OK.
 The orange, dashed lines are at the start and end of the cabling
that the tester includes in the test results.
To zoom in and out, use the pinch, reverse-pinch, and double-
tap gestures on the touchscreen. You can also use the zoom
controls to change the magnification on the distance and
amplitude scales independently. See Figure 5 on page 18.
Note
For HDTDR plots for short cables such as patch
cords, the tester does not change the magnification
for the distance (horizontal) scale.