48 N9912A FieldFox User’s Guide
o Single Automatically sets Continuous OFF and causes FieldFox to make
ONE measurement, then hold for the next Single key press. When a data
trace is displayed, the entire trace is measured, then holds. The Hold
annotation changes to an arrow --> while the measurement occurs.
o Continuous Makes continuous measurements. 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 also takes more time to complete an entire
measurement sweep.
When the Resolution is changed after a calibration is performed, the cal becomes
interpolated. Learn more on page 65.
How to set Resolution
Press Sweep 3 .
Then Resolution.
Then choose from 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 www.agilent.com/find/fieldsfoxsupport
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 at the FieldFox Supplemental Online Help:
www.agilent.com/find/fieldsfoxsupport
The actual sweep time is shown on the FieldFox screen. See the Screen Tour on
page 18. 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.
NOTE Measurement speed specifications do NOT apply in Temperature Control Mode.
Learn more on page 14.
How to set Sweep Time
Press Sweep 3.
Then Min Swp Time.
Enter a value using the numeric keypad.
Press a multiplier key. Learn about multiplier abbreviations on page 19.
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