EXFO VDSL2 - Manual (Page 110)

VF Tests
102 AXS-200/635i
Power Influence
Impulse Noise
The Impulse Noise tab allows you to
view results of the VF impulse noise
test.
Power Influence
The Power Influence tab allows you to
view the effects of interference from a
50 Hz or 60 Hz power line (AC mains)
on the circuit under test. The results of
the power influence test are in
graphical form.
To move the screen pointer:
Press the left/right arrow keys to move
the screen pointer. The pointer value
updates dynamically.