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Command Reference
CALCulate Subsystem
Set Center Frequency to the Marker Value
:CALCulate:MARKer[n][:SET]:CENTer
Sets the center frequency equal to the specified marker frequency, 
which moves the marker to the center of the screen. In delta 
marker mode, the center frequency is set to the marker delta value. 
This command is not available in zero span.
Key access:
 > Mkr –> CF
Set Reference Level to the Marker Value
:CALCulate:MARKer[n][:SET]:RLEVel
Sets the reference level to the specified marker amplitude. In delta 
marker mode, the reference level is set to the amplitude difference 
between the markers.
Key access:
 > Mkr –> Ref Lvl
Set Start Frequency to the Marker Value
:CALCulate:MARKer[n][:SET]:STARt
Sets the start frequency to the value of the specified marker 
frequency. In delta marker mode, the start frequency is set to the 
marker delta value. This command is 
not available in zero span.
Key access  > Mkr –> Start
Set Center Frequency Step Size to the Marker Value
:CALCulate:MARKer[n][:SET]:STEP
Sets the center frequency step size to match the marker frequency. 
In delta marker mode, the center frequency step size will be set to 
the frequency difference between the markers. Select the delta 
marker mode with :CALCulate:MARKer[n]:MODE DELTa. This 
command is not available if the delta marker is off, or in zero span.
Key access:
 > Mkr –> CF Step