Exfo FTB-5230S Optical Spectrum Analyzer for FTB 200 v2 Manuel d'utilisateur télécharger pdf (Page 143)

Setting Up the Instrument in Drift Mode

OSA/OCA 137

Setting Up Acquisition Parameters

6. Select a location where the drift file should be saved.

7. Select whether you want to keep all of the historical traces in the

subfolder, keep only the significant ones, or keep none. The historical

traces are stored in separate *.osawdm files.

A significant event is when

 a value from a given channel has crossed its threshold (going from

pass to fail).

 there is no signal power in a given channel.

These historical files are stored in a dedicated folder having the same

name as the associated drift measurement file name.

Note: You can have a maximum of 3 significant traces per channel.

Note: This option is not available in offline mode.

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Exfo FTB-5230S Optical Spectrum Analyzer for FTB 200 v2 Manuel d'utilisateur Page 143