Chapter 3 93
Mode
Occupied Bandwidth Measurement
Mode
AMPTD Y Scale
AMPTD Y Scale key activates the reference level function, and accesses the amplitude
menu keys. The amplitude menu keys set functions that affect the way data on the vertical
axis is displayed or corrected.
Autoscale
Executes an automatic scaling of the
Reference Level setting. Autoscale is a front panel
only function and has no SCPI command.
Reference Level
Sets the reference level value used for amplitude measurements. The reference level is the
amplitude power or voltage represented by the top graticule line on the display. Changing
the value of the reference level changes the absolute amplitude level of the top graticule
line. The reference level (in selected amplitude units) can be set with the step keys, knob,
or numeric keypad.
Example CONF:OBW selects the OBW measurement.
INIT:IMM starts a measurement cycle.
*OPC? holds off the return of data until the above commands
have completed.
CALCulate:DATA? returns the measurement data.
Notes You must be in the Spectrum Analyzer mode and in the OBW
measurement in order to get the OBW results using this
CALCulate:DATA?query.
Key Path
N/A. Function is only available remotely.
Mode: SA
Key Path Front-panel key
Mode SA
Key Path
AMPTD Y Scale, Autoscale
Mode SA
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