52 Keysight N9927-90001 User’s Guide
CAT (Cable and Antenna Test) Mode
CAT Mode Settings
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 140
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 35. 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.
How to set Sweep Time
—Press Sweep 3.
—Then Min Swp Time
.
— Enter a value using the numeric keypad.
— Press a multiplier key. Learn more in “Multiplier Abbreviations” on page 43.
Measurement speed specifications do NOT apply in Temperature Control
Mode. Learn more in Chapter 1, “Overview.”
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