3- 8 Keysight N9912-90001 User’s Guide
CAT (Cable and Antenna Test) Mode
CAT Mode Settings
3-
— Then choose one of the following:
— Single
Automatically sets Continuous OFF and causes FieldFox to
make ONE sweep, then hold for the next Single key press. Hold is
annotated in the upper left corner of the display when NOT sweeping,
and changes to an arrow --> while the sweep occurs
— Continuous
Makes continuous sweeps. This is the typical setting
when battery power is not critical.
You can also use Run / Hold +/-
to toggle between Single and Continuous.
Resolution (Number of Data Points)
Data points are individual measurements that are made and plotted across the
X-axis to form a trace. Select more data points to increase measurement
resolution. However, more data points require more time to complete an entire
measurement sweep
When the Resolution is changed after a calibration is performed, the cal
becomes interpolated. Learn more in “Interpolation” on page 7-7.
How to set Resolution
—Press Sweep 3.
—Then Resolution
.
— Then choose one of the following:
101 | 201 | 401 | 601 | 801 | 1001 |1601 | 4001 | 10001
.
— Using SCPI, Resolution can be set to any number of points between 3 and
10001. See the Programming Guide at
http://na.support.keysight.com/fieldfox/help/
Sweep Time
The fastest possible sweep time is always used as the default setting. Use the
Min Swp Time setting to slow the sweep time when measuring long lengths of
cable.
Learn more in the FieldFox Supplemental Help at:
http://na.support.keysight.com/fieldfox/help/SupHelp/FieldFox.htm
The actual sweep time is shown on the FieldFox screen. See “Take the FieldFox
Tour” on page 2-7. To increase the sweep time, enter a value that is higher
than the actual sweep time. The increase will not be exactly the amount that
you enter, as the actual sweep time is the composite of many factors.
Measurement speed specifications do NOT apply in Temperature Control
Mode. Learn more in “FieldFox High Temperature Protection” on page 2-4
.
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