34410A/11A/L4411A User’s Guide 63
Features and Functions 2
Math Functions
In addition to providing a separate null–per–function measurement capability, the
multimeter provides four math functions: dB measurements (dB), dBm measurements
(dBm), statistics for accumulated readings (STATS), and limit testing (LIMITS). Only
one of these math functions can be enabled at a time (in addition to the null
measurement), and remains in effect until you turn it off or change it.
• Front Panel Operation: Press
MATH Select: OFF, dB, dBm, STATS or LIMITS.
See the dB, dBm, statistics, and limit testing sections that follow.
To turn any math function off: Press
MATH > OFF
• Remote Interface Operation: The following command selects the math function to
be used:
CALCulate:FUNCtion {NULL>DB>DBM>AVERage>LIMit}
The following command queries the currently selected math function:
CALCulate:FUNCtion?
This query returns the currently selected function
The following command turns the CALCulate subsystem, and thus all math
functions, on or off:
CALCulate[:STATe] {OFF>ON}
The following command queries the current calculation state:
CALCulate:STATe?
This query returns a “0” (OFF) or a “1” (ON).
Refer to the Keysight 34410A/11A/L4411A Programmer’s Reference Help for
a complete description and syntax for these commands.
The null function in the CALCulate:FUNCtion command is provided only for SCPI
compatibility with the 34401A Multimeter. This null is not available from the front
panel. The use of this null is deprecated for the 34410A/11A/L4411A. Use the
null-per-function commands found in the [SENSe:] subsystem instead. See “Null
Measurements” on page 60 and the Keysight 34410A/11A/L4411A Programmer’s
Reference Help for details.
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