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EXFO FTB-5230S Optical Spectrum Analyzer for FTB-500 User Manual

Page 27

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Preparing Your OSA/OCA for a Test

OSA/OCA

21

Nulling Electrical Offsets

2. Disconnect any incoming signal to obtain an optimal accuracy.

3. Press Nulling.

You are notified that the nulling is in progress in the status bar. Nulling
should be completed in a few seconds.

Note: Several features, such as the Start button and Discover, are not available

during the nulling process.