Keysight Technologies N9330B, User Manual

Page: 38 / 107

Making Measurements 
Measuring Distance to Fault (DTF)
32
For a more precise measurement, enter the cable loss
and velocity factor information.
Adjusting the measurement resolution
The tester has three resolution settings, 521, 261, or 131
points. Press the
[MEAS/VIEW]
hardkey, then the
{Resolution}
softkey to choose the resolution setting
desired, then press the
[ENTER]
hardkey to enter the
selection.
The higher the resolution, the more accurate the
measurement results. However, a higher resolution
setting will require a longer sweep time.
Using Marker/Limit
For further trace analysis, refer to:
"Using markers" on page 40 .
"Using Pass/Fail Limit Lines" on page 41 .
"Trace Operation" on page 43 .
For getting an isolated return loss signal, refer to:
"Using single sweep" on page 51 .
For minimizing the interference, refer to:
"Enabling interference immunity" on page 51 .
NOTE
The measured distance and the displayed distance can be
different.
The measured distance refers to the distance the tester has
measured according to the frequency ranges you specified. You
can check the measured distance by pressing 
{DTF Config}
The displayed distance refers to that part of the entire measured
distance chosen. The displayed distance may be manually set by
pressing [FREQ/DIST] > {Start}, and {Stop}.