Measuring Wb2 Impulse Noise - JDS Uniphase HST-3000 User Manual

Measuring WB2
impulse noise
Impulse noise is spurious voltage spikes that can disrupt
digital transmissions.
The following procedure describes how to measure WB2
impulse noise.
To measure impulse noise
1 Connect the Tip (A) and Ring (B) leads to the line under
test, as described in
2 Press the Display soft key, then select WB2 TIMS.
3 Select Impulse Noise.
The Impulse Noise menu appears.
4 Select the type of test by performing the following steps.
a Press the Actions soft key.
b Select the type of test.
To select...
Timed
Untimed
5 Set the noise threshold by performing the following steps.
a Press the Actions soft key.
b Press the 4 key.
c Type the noise threshold, and press the OK key.
NOTE:
When the test is stopped, you can also change the thresh-
old by pressing the up or down arrows.
6 Optional. To change the threshold units, do the following.
a Press the Actions soft key.
b Press the 3 key.
This toggles between dBm and dBr n.
HST-3000 Copper Testing User's Guide
Chapter 8 Wideband testing
Performing WB2 measurements
"Connecting to the line" on page 113
Press...
the 1 key
the 2 key
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