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3.6.4. Reflection Loss Test
The return loss mode is mainly used to accurately measure the reflection loss characteristics
of any reflection event in the link.
In the reflection loss mode, the OTDR main interface will appear A and B two cursors.
When the reflection event loss is tested, the cursor A is placed in front of the reflection event to
be measured, and closed to the take-off position, Place the cursor B at the top position of the
reflection event. The return loss can be read by the return loss. As show in figure 3-6.
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