EXFO FTB-5230S Optical Spectrum Analyzer for FTB-500 - Manual (Page 92)

Setting Up the Instrument in WDM Mode
86 FTB-5230S/-OCA
Setting Up Acquisition Parameters
Setting Up Acquisition Parameters
Before performing your test, you must set the acquisition type and
parameters.
There are three types of acquisitions in WDM mode:

Single: Spectral measurement is performed once. The results are
displayed according to this measurement.

Averaging: Spectral measurements are performed based on the
number of scans that you have entered for this parameter. The trace
will be displayed after each acquisition and averaged with the previous
traces.

Real-Time: In real-time acquisition, spectral measurements are
performed continuously until you press Stop. No averaging is done for
spectral measurements. The graph and results are refreshed after each
acquisition.