Chapter 3 115
Mode
Occupied Bandwidth Measurement
Mode
Span: 1st Segment Left  
Sets the frequency span for the 1
st
 segment to the Left of the Center segment. This key is only 
available when 
1st has been selected with the Segments key.
Span: 1st Segment Right  
Sets the frequency span for the 1
st
 segment to the Right of the Center segment. This key is only 
available when 
1st has been selected with the Segments key.
Preset Not affected by a preset but set per default to –10 dBm after a 
power cycling
State Saved Saved in instrument state.
Key Path
Meas Setup, Limit Masks, Limit Mask 1, 1st Segment: Right Level
Default Unit dBm
Mode SA
Remote Command :CALCulate:OBWidth:LMASk[1]|2:SEGMent:FIRSt:LEFT:SPA
N <frequency>
:CALCulate:OBWidth:LMASk[1]|2:SEGMent:FIRSt:LEFT:SPA
N?
Example :CALC:OBW:LMAS1:SEGM:FIRS:LEFT:SPAN 1.75 MHz
Notes
Key is only displayed when the selected segment is 1
st
, and the 
selected segment side is Left.
Dependencies / 
Couplings
If the Center, 1
st
, and 2
nd
 segments are On, the left 2
nd
 segment 
span adjusts on a change in the left 1
st
 segment span.
Preset Not affected by a preset but set per default to 2 MHz after a 
power cycling
State Saved Saved in instrument state.
Min 0 Hz
Max See Restriction & Notes
Key Path
Meas Setup, Limit Masks, Limit Mask 1, 1st Segment: Left Span
Default Unit Hz
Mode SA