EXFO VDSL2 - Manual (Page 124)

Wideband Tests
116 AXS-200/635
Impulse Noise Histogram
³
Plot Interval defines the baseline time duration for measuring impulse
noise spikes, and represents the resolution of the plot. Select one of the
following: 1, 5, 15, or 60 Minutes.
³
Measurement Time (hours) defines the duration of the Impulse Noise
Histogram test. Specify a value between 1 and 360 hours.
To start/stop the test:
1. Press the up/down arrow keys to highlight the desired test parameter.
2. Press to open the list or specify a value.
3. Press the up/down arrow keys to highlight the desired value.
OR
4. Press the left/right arrow keys to erase the existing value, and then use
the alphanumeric keypad to enter a value. To cancel the entry,
press
.
5. Press to accept the value.
6. Select other parameters as required.
7. Press to start/stop the test.
Summary
The Summary tab allows you to view
results of the wideband impulse noise
histogram test in text form.