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212 Chapter 1
GPIB Command Dictionary
MEASure subsystem
:AFRequency:AM <meas cmnd>
:AFRequency:AM?
These commands set/query the AM depth measurement. To use this
measurement you must select either the AM Mod or AM Demod audio
source (AFAN:INP).
Syntax
MEAS:AFR:AM <meas cmd>
!See “Number Measurement Syntax” on page 283.
MEAS:AFR:AM? !returns real value
Example
MEAS:AFR:AM:METer ON !displays the measurement in the meter
Screen/field equivalent
MEAS:AFR:AM? reads the AM Depth measurement field on the AF
ANALYZER screen when the AF Anl In field is set to AM Mod, or AM
Demod. This measurement is also displayed on the RF ANALYZER and
RF GENERATOR screens.
:AFRequency:DCAM <meas cmnd>
:AFRequency:DCAM?
These commands set/query the DC AM measurement. To use this
measurement, you must have the DC level measurement selected (see
MEAS:AFR:SEL on page 216), and you must be using the AM Demod
or AM Mod audio source (see AFAN:INP on page 59).
Syntax
MEAS:AFR:DCAM <meas cmd>
!See “Number Measurement Syntax” on page 283.
MEAS:AFR:DCAM? !returns a real value
Example
MEAS:AFR:DCAM:AVERage 4 !averages DCAM over 4 measurements
MEAS:AFR:DCAM? !returns the measured value
Screen/field equivalent
MEAS:AFR:DCAM? reads the DC Level (%) measurement field on the
AF ANALYZER screen when the AF Anl In field is set to AM Mod, or AM
Demod. This measurement is also displayed on the RF GENERATOR
and RF ANALYZER screens.