Setting Up Your Variable Attenuator
Variable Attenuator 25
Selecting the Attenuation
The attenuation range (minimum and maximum possible attenuation) of
your FVA-3100 Variable Attenuator depends on the model you have at
hand. Although EXFO guarantees that the minimum insertion loss is below
a specified value, it may vary slightly from one wavelength to another and
from one variable attenuator to another.
To set the minimum attenuation:
1. Select a wavelength, by clicking on the wavelength control until you
reach the desired wavelength.
2. Press the Abs button.
3. Press the Attenuation button and set an attenuation of 000.00 dB.
4. Press ENTER. The Variable Attenuator will default to the minimum
insertion loss.
VARIABLE ATTENUATOR
FVA-3100
Offset
ENTER
Abs Up
Shutter
Ref
λ
Down Attenuation
Program
Setup
Confirmationbutton
Absolute mode access
Arrow buttons for menu navigation
and parameter setting
Display
Step
In Monitor Out
Setup menu access
Shutter
Wavelength control
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