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7.1.1 Instruction of Trace graph Area on the Main Interface of OTDR
The window displays the trace gained from the first measurement.
Definition of trace: After the first measurement, reflection power diagram is displayed as
distance function. The diagram is called trace.
Trace of OTDR displays the measurement result by graphic mode on the screen. The
vertical axis represents the power, while the lateral axis represents the distance. The event point
is marked with red symbol.
Fig.7-2 Schematic Diagram of Trace Area
Fig.7-3 Schematic Diagram of Marks of Event Point
7.1.2 Instruction of Trace Operation Button Area on the Main Interface of OTDR
“Longitudinal amplifying” indicates longitudinally amplifying the measured trace with the
intersection of the chosen sign post and the trace as center.
“Longitudinal reducing” indicates longitudinally reducing the measured trace with the
intersection of the chosen sign post and the trace as center.
“Transversal amplifying” indicates transversally amplifying the measured trace with the
intersection of the chosen sign post and the trace as center.
“ Transversal reducing ” indicates transversally reducing the measured trace with the
intersection of the chosen sign post and the trace as center.
“Whole trace” indicates displaying the whole measured trace.
“Lock/Unlock of AB” indicates Lock/Unlock of relative position of scale plates A and B.
“Switching of trace” indicates mutual switching between or among two or more measured
traces.
“Move upwards” indicates upward movement of measured trace.
