EXFO FVA-3150 Variable Attenuator - Manual (Page 47)

Operating Your Variable Attenuator
Variable Attenuator 41
Performing an Attenuation Routine
9. Press ENTER. The first digit will start flashing. Use the up/down arrows
to change the flashing digit and the left/right arrows to activate the next
digit.
10. Once the number of steps is set, press ENTER.
11. Press the right arrow. To set the attenuation difference between the
steps.
12. Press ENTER. The first segment will start flashing. Use the up/down
arrows to change the flashing digit and the left/right arrows to activate
the next digit.
Note: Entering a negative value will increase the attenuation (in absolute value)
during the routine. Entering a positive value will decrease it.
13. Once the step size is set, press ENTER.
Note: The difference with the current attenuation must be of at least 0.002 dB for
the new attenuation step size to be valid.
14. Press the Program button to exit the menu.
Note: The initial attenuation state counts as a step.
dB