VNA Master™Programming Manual : Spectrum Analyzer Commands : :DISPlay Subsystem
 
:DISPlay Subsystem
This subsystem provides commands that modify the display of data for the user. They do not modify the way in which data are returned to the controller.
Display Grid
:DISPlay:GRID
Description
Turns the sweep window grid lines On or Off.
Syntax:
:DISPlay:GRID 0|1|ON|OFF
Cmd Parameter
<boolean> 0|1|ON|OFF
Query Response
NA (no query)
Front Panel Access
NA
 
Auto Reference Level
:DISPlay:WINDow:TRACe:Y:ADJust
Title
Adjust Range
Description
Automatically adjusts reference level if input signal strength is too high (ADC error) or too low.
Example
:DISPlay:WINDow:TRACe:Y:ADJust
Front Panel Access
Amplitude, Auto Ref Level
 
Scale
:DISPlay:WINDow:TRACe:Y[:SCALe]:PDIVision
Description
Sets the scale (dB/division) for the y‑axis.
Syntax:
:DISPlay:WINDow:TRACe:Y[:SCALe]:PDIVision <rel ampl>
:DISPlay:WINDow:TRACe:Y[:SCALe]:PDIVision?
Cmd Parameter
<rel ampl>
Query Response
<rel ampl>
Default Value
10 dB/div
Default Unit
dB
Range
1 dB to 15 dB
Front Panel Access
Amplitude, Scale
 
Reference Level
:DISPlay:WINDow:TRACe:Y[:SCALe]:RLEVel
Description
Sets the reference level amplitude value for the y‑axis. Note that this may cause a change in attenuation if the automatic input attenuation coupling is enabled.
Syntax:
:DISPlay:WINDow:TRACe:Y[:SCALe]:RLEVel <amplitude>
:DISPlay:WINDow:TRACe:Y[:SCALe]:RLEVel?
Cmd Parameter
<amplitude>
Query Response
<amplitude>
Default Value
10 dBm
Default Unit
Current active amplitude unit
Range
With reference level offset = 0 dB: 30 dBm to – 130 dBm
Example
To set the reference level to 15 dBm (If y‑axis is dBm)
:DISPlay:WINDow:TRACe:Y:SCALe:RLEVel 15
:DISPlay:WINDow:TRACe:Y:SCALe:RLEVel 15dBm
Related Command
:DISPlay:WINDow:TRACe:Y[:SCALe]:RLEVel:OFFset
Front Panel Access
Amplitude, Reference Level
 
Reference Level Offset
:DISPlay:WINDow:TRACe:Y[:SCALe]:RLEVel:OFFSet
Description
Sets the reference level offset value for the y‑axis.
Syntax:
:DISPlay:WINDow:TRACe:Y[:SCALe]:RLEVel:OFFSet <rel ampl>
:DISPlay:WINDow:TRACe:Y[:SCALe]:RLEVel:OFFSet?
Cmd Parameter
<rel ampl>
Query Response
<rel ampl>
Default Value
0 dB
Default Unit
dB
Range
– 100 dB to + 100 dB
Front Panel Access
Amplitude, RL Offset