EXFO MaxTester 635G - Page 192

Noise Tests
182 MAX-635G
VF Impulse Noise
To select the parameter values:
1. Press the up/down arrow keys to highlight the desired parameter.
2. Press the left/right arrow keys to view and select the options.
OR
3. Press on a value to open a list box of options.
4. Press to confirm the value.
VF Impulse Noise Threshold Settings
The Threshold Settings page allows you to set the VF Impulse Noise
Threshold values for the test.
 Low Counter Power Detection Level defines the
low threshold limits for the impulse noise test.
 Power Separation defines the level difference
between the Low, Mid, and High thresholds.
Specify a value between 1 and 6 dB.
 Mid Counter allows you to set the threshold value
for this counter.
 Type is the threshold limit of the Mid Counter:
either Maximum or Minimum.
 Enabled is a flag to use the current Mid Counter
threshold: either Yes or No.
To set threshold values:
1. Press the up/down arrow keys to highlight the desired parameter.
2. Press the left/right arrow keys to view and select the options.
OR
3. Press on a value to open a list box of options or the alphanumeric
editor screen and use the navigation keys to scroll through.
4. Press to confirm the value.