D Single-Mode/Multimode Module Performance Tests Test I. Dynamic Range
228 E6000C Mini-OTDR User’s Guide, E0302
back to 0 km from the OTDR, that is if there was no
initial reflection.
Use the Left and Right cursors to offset by large
increments, and the Up and Down cursors to ‘fine
tune’.
11 Close Offset
<S
ELECT>
Reposition markers 12 Select Marker A
U
P (A/B) until only A is highlighted.
13 Use the cursor keys to position marker A at the end of
the front reflection on the level of the extrapolated
beginning of the backscatter (that is, the crossing of the
frontreflection and the horizontal grid line).
Figure 77 Dynamic Range Test: Position Marker at End of Frontreflection
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