Exfo MaxTester 635 Uživatelský manuál Strana 184

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Frequency Tests
176 MAX-635
VF/AC Balance
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.
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