Exfo FTB-7000 OTDR for FTB-200 v2 Manual de usuario Pagina 63

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Testing Fibers in Advanced Mode
OTDR 49
Enabling the High-Resolution Feature
Enabling the High-Resolution Feature
If your OTDR model is FTB-7000D or later, You can select the
high-resolution feature to obtain more data points per acquisition. This
way, the data points will be closer to each other, which will result in a
greater distance resolution for the trace.
Note: When you test with the high-resolution feature, you should use a longer
averaging time to maintain a signal-to-noise ratio (SNR) that will be
equivalent to the one you would have got with the standard resolution.
Note: You can use high resolution with any test mode (except when you monitor
fiber in real time), but you must be in Advanced mode to select it. In
Template mode, you will have to acquire the reference trace using high
resolution. This way, all subsequent acquisitions will use this feature
automatically.
IMPORTANT
To test using the high-resolution feature, the acquisition time must
be of at least 15 seconds.
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