EXFO FTB -5240S/5240BP Optical Spectrum Analyzer for FTB 500 (NS-1434) User Manual
Page 121
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Setting Up the Instrument in Drift Mode
Optical Spectrum Analyzer
113
Defining Preferences
3. Select the spectral unit you want to work with.
With the nanometer (nm) spectral unit, the trace will appear as shown
below:
With the terahertz (THz) spectral unit, the trace will appear as shown
below:
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