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Chapter 3
Measurements
37
Figure 3-7
DISPLAY
The CE4000 color display provides comprehensive information
and measurement details.
Top Bar - The top bar provides basic unit information,
including the current test mode “Auto”. The battery
icon indicates operation from battery power; the bar
graph indicates the battery charge condition (full),
the VOP (85.0%) used for the test and the Pulse
Width (20 nSec).
Axes - The horizontal and vertical axes depict the
distance to the fault and the severity of the fault in dB
of Return Loss. The scale of the axes is dependent on
automatic or manual settings. Calibrated marks with
numbers are provided.
Markers – Two markers are provided and automatically
placed in the Auto test mode. The Loss and DIST
measurements are made at the markers.
DIST - Distance is the measurement of the cable’s
distance from the TDR to the reflection from the fault.
Loss - The Loss is the measurement of the Return Loss
at the fault plus two times the cable loss over the
distance from the TDR to the fault.