Measuring Spectral Noise - JDS Uniphase HST-3000 User Manual

Measuring
spectral noise
7 Optional. To change termination, do the following:
a Press the Actions soft key.
b Press the 5 key.
c Select a termination.
To select...
100 ohm
135 ohm
75 ohm
120 ohm
8 To begin the test, press the Start soft key.
A count of impulse noise events appears on the Impulse
Noise screen.
9 To view the Impulse Noise Event Log, press the Results
soft key, and then select View Event Log.
If an impulse noise "hit" occurs, a log file is generated that
includes the date and time and the number of counts that
occurred in that second. The log file also includes the
termination, filter, threshold, and test start time.
10 Press the Results soft key to save or clear the results.
For information on saving your results in graphical form,
see "Saving results" on page
11 Press the Stop soft key.
You have completed the test.
Radio frequency interference from digital services or AM
radios can reduce the performance of a copper wire. With the
spectral noise option, the HST-3000 can detect and measure
the existence of such interference.
HST-3000 Copper Testing User's Guide
Chapter 8 Wideband testing
Performing WBTIMS measurements
Press...
the 1 key
the 2 key
the 3 key
the 4 key
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