Exfo FTB -5240S/5240BP Optical Spectrum Analyzer for FT Uživatelský manuál stáhnout pdf (Strana 334)

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Managing Results

326 FTB-5240S/5240BP

Managing Drift Test Results

To view channel history results:

From the main window, select the Channel History tab.

Results for the following parameters related to the selected channel are

displayed in the Channel History table:

³ Spectral position (center of mass of wavelength or frequency) of the

channel against time (nm or THz)

³ Signal power of the channel against time (dBM)

³ OSNR of the channel against time (dB)

For each of the above parameters, the following results are displayed:

³ Reference: indicates the channel reference values for the current drift

acquired during the initial acquisition.

³ Current Drift: indicates the current drift values, that is, the current

deviation from the channel’s reference for the drift’s latest acquisition.

³ Maximum: indicates the maximum values reached during the drift.

³ T Max.: indicates the time of the drift at which the channel was at its

maximum value. Displayed time is relative to the time at the start of the

drift measurement.

³ Minimum: indicates the minimum values reached during the drift.

³ T Min.: indicates the time of the drift at which the channel was at its

minimum value. Displayed time is relative to the time at the start of the

drift measurement.

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Exfo FTB -5240S/5240BP Optical Spectrum Analyzer for FT Uživatelský manuál Strana 334

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