EXFO MaxTester 635G User Manual page 222

Frequency Tests
VF/AC Balance
3. Press
editor screen and use the navigation keys to scroll through.
4. Press
Active Result Details
The Active Results Details read-only page displays
the VF/AC Balance value and the pass/fail status.
Passive
The Passive function computes the passive balance
as the difference between Power Influence and VF Noise, displaying and
updating results in real time, until you stop the test. The last valid results
then remain displayed. The measurement results of the active and passive
VF Longitudinal Balance tests will generally be different due to the fact they
use different measurement techniques.
Current Group is the current test group name, for

example Frequency Tests.
Current Test displays the test being measured.

Here you can switch to another test from the given
list. However, this action will terminate the
ongoing measurement test.
Noise Filter displays the type of noise filter used.

Power Line Frequency displays the frequency

value of the power line.
Threshold Settings button opens a new page that

allows you to set the VF/AC Balance Threshold.
212
on a value to open a list box of options or the alphanumeric
to confirm the value.
MAX-635G