Instructions
RIGOL  Chapter 4 Command System for VSA Mode 
4-22  RSA3000E Programming Guide 
Parameter 
Name 
Type 
Range 
Default 
<n>  
Discrete 
1|2|3|4 
-- 
-- 
Bool 
OFF|ON|0|1 
ON|1 
Remarks 
ON: sets to Auto mode. The instrument adjusts the X-axis reference value and X-axis width to an optimal 
state. 
OFF: sets to Manual mode. You need to set the X-axis reference value and X-axis width manually. 
Return Format
The query returns 0 or 1. 
Example
The following command enables the X Scale auto mode of Trace 1. 
:DISPlay:DDEMod:TRACe1:X:SCALe:COUPle ON or :DISPlay:DDEMod:TRACe1:X:SCALe:COUPle 1 
The following query returns 1. 
:DISPlay:DDEMod:TRACe1:X:SCALe:COUPle? 
:DISPlay:DDEMod:TRACe<n>:X[:SCALe]:RLEVel 
Syntax 
:DISPlay:DDEMod:TRACe<n>:X[:SCALe]:RLEVel <real> 
:DISPlay:DDEMod:TRACe<n>:X[:SCALe]:RLEVel? 
Description 
Sets the X-axis reference of the selected trace. 
Queries the X-axis reference of the selected trace. 
Parameter 
Name 
Type 
Range 
Default 
<n>  
Discrete 
1|2|3|4 
-- 
<real>  Consecutive Real Number 
Time-Domain Data: 
(-1e+12) to (1e+12) 
Frequency-Domain Data: 
-1THz to 1THz 
0 (0 us) 
/998.4375 MHz 
Remarks 
This command is valide only when the X-axis scale is set to Manual. 
When the time-domain data source is selected, the reference unit is symbol or s; when the 
frequency-domain data source is selected, the reference unit is Hz. 
Return Format
The query returns the X-axis reference of the selected trace in scientific notation. 
Example
The following command sets the X-axis reference of Trace 1 to 25.  
:DISPlay:DDEMod:TRACe1:X:SCALe:RLEVel 25 
The following query returns 2.500000000e+01. 
:DISPlay:DDEMod:TRACe1:X:SCALe:RLEVel? 










