122 Chapter 3 
Mode
Occupied Bandwidth Measurement
Mode
Full Span 
Changes the displayed frequency span to show the full frequency range of the analyzer.
Zero Span
In the OBW measurement, this function is not available and the key is grayed out. The 
OBW measurement is a Frequency Domain measurement. The user can not work in the 
Time Domain in this measurement.
Last Span 
Changes the displayed frequency span to the previous span setting. There is no memory of 
the last span after a power off or a mode preset. 
Trace/Detector
Accesses the trace and detector settings that can be changed when using the Occupied BW 
measurement.
Mode SA
Remote Command [:SENSe]:OBWidth:FREQuency:SPAN:FULL
Example OBW:FREQ:SPAN:FULL
Preset Full Span
Key Path
Span/X Scale, Full Span 
Mode SA
Example OBW:FREQ:SPAN 0 sets the Span to its minimum Frequency 
span value (1 kHz for OBW).
Key Path None
Mode SA
Remote Command [:SENSe]:OBWidth:FREQuency:SPAN:PREVious
Example OBW:FREQ:SPAN:PREV
Key Path
Span/X Scale, Last Span