3 Spectrum Analyzer Mode
3.11 Harmonics Measurement
Units Example
dBmV/m :UNIT:POW DBUVM
dBmA/m :UNIT:POW DBUAM
dBpT :UNIT:POW DBPT
dBG :UNIT:POW DBG
dBmA :UNIT:POW DBUA
None n/a
Ref Level Offset
Adds an offset value to the displayed reference level. The reference level is the
absolute amplitude represented by the top graticule line on the display.
The On/Off switch turns Ref Level Offset on or off. Setting a specific value turns Ref
Level OffsetON.
Remote
Command
:DISPlay:WINDow[1]:TRACe:Y[:SCALe]:RLEVel:OFFSet <rel_ampl>
:DISPlay:WINDow[1]:TRACe:Y[:SCALe]:RLEVel:OFFSet?
Example
:DISP:WIND:TRAC:Y:RLEV:OFFS 12.7
:DISP:WIND:TRAC:Y:RLEV:OFFS?
Sets the Ref Level Offset to 12.7 dB. The only valid suffix is dB. If no suffix is sent, dB will be assumed
Preset 0 dBm
State Saved Saved in instrument state
Min The range is variable. It is limited to values that keep the reference level within the range –327.6 dB to
327.6 dB
Max 327.6 dB
Annotation The offset is displayed as “Ref Offset <value>” to the right of the reference level annotation if nonzero.
When the offset is zero, no annotation is shown
Auto Function
Remote
Command
:DISPlay:WINDow[1]:TRACe:Y[:SCALe]:RLEVel:OFFSet:STATe OFF | ON | 0 | 1
:DISPlay:WINDow[1]:TRACe:Y[:SCALe]:RLEVel:OFFSet:STATe?
Example
:DISP:WIND:TRAC:Y:RLEV:OFFS:STAT ON
Turns the Ref Level Offset On
Preset
OFF
1858 Spectrum Analyzer Mode User's &Programmer's Reference
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