EXFO IQS-3150 Variable Attenuator for IQS-500/600 - Manual (Page 30)

Setting Up Your Variable Attenuator
24 IQS-3150
Basic Settings
To set a correction factor for a wavelength:
1. On the Settings function tab, click the Presets tab.
2. Under B Value, in the Wavelength list, use the up/down arrows to
select the wavelength for which you want to add a correction factor.