Agilent Technologies 35670A Manual page 163

CALCulate
You can also set the value with an expression. Send
CALC:MARK:BAND:STOP (CALC:MARK:X?) to set the value to the current X-axis marker value.
If the X-axis is in time, this command specifies the stop time for computation of time domain parameters.
The default position is at the right edge of the trace.
The query returns the value of the current stop frequency of the band (or the stop time) in X-axis units.
The value is returned even if the band markers are not on.
To determine the X-axis units, send CALC:MARK:BAND:STOP? UNIT.
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