EXFO FTB -5240S/5240BP Optical Spectrum Analyzer for FTB 500 (NS-1434) - Manual (Page 234)

Setting Up the Instrument in EDFA Mode
226 FTB-5240S/5240BP
Defining Preferences
³
Gain: indicates the gain (Output Signal Power - Input Signal Power)
for the selected channel.
³
Noise Figure: indicates the EDFA’s noise figure measured for the
selected channel.
³
Gain - Avg. Gain: indicates the selected channel gain minus the
average of all channel gains.
4. Press Up or Down to change the order in which the columns will
appear in the Results tab.
5. Press OK to save the changes and close the window, or press Cancel to
exit without saving.
Press Restore Defaults to remove all the changes and apply the default
values.