Anritsu MS2840A - [:SENSe]:FREQuency:SPAN:ZERO

Chapter 2 SCPI Device Message Details
2-48
[:SENSe]:FREQuency:SPAN:ZERO
Zero Span
Function
This command sets the frequency span to 0 Hz (Time domain display).
Command
[:SENSe]:FREQuency:SPAN:ZERO
Details
When Zero Span is executed during other than the Burst Average
measurement, the Measure function is set to Off.
This command is disabled when Internal Signal Generator Control
On/Off or the N dB Bandwidth measurement function is set to On.
Example of Use
To set the frequency span to 0 Hz (Time domain display).
FREQ:SPAN:ZERO