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3-7
Programming
Making Measurements
Commands are grouped in subsystems
The Agilent 86120C commands are grouped in the following sub-
systems. You’ll find a description of each command in Chapter 4, “Pro-
gramming Commands”.
Subsystem
Purpose of Commands
Measurement
Instructions Perform frequency, wavelength, and wavenumber
measurements.
CALCulate1 Queries uncorrected frequency-spectrum data.
CALCulate2 Queries corrected peak data and sets wavelength limits.
CALCulate3 Performs delta, drift, signal-to-noise, and Fabry-Perot
measurements.
DISPlay Applies markers and displays power bars.
HCOPy Prints measurement results.
SENSe Sets elevation-correction values, selects readings for air or
vacuum, and enters amplitude offsets. Queries time-domain
values of the input data.
STATus Queries instrument status registers.
SYSTem Presets Agilent 86120C and queries error messages.
TRIGger Stops current measurement. Acquires new measurement data.
Also used to select single or continuous acquisition of
measurement data.
UNIT Sets the amplitude units to watts or dBm.
Table 2-4 on page 3-8 shows the kinds of measurements that the
Agilent 86120C can perform and the associated programming com-
mands used to return that data. In some cases, there is more than one
method that can be used to obtain the desired data. Refer to Chapter
4, “Programming Commands” for the correct syntax for these com-
mands.