Instructions

Chapter 4 Command System for VSA Mode RIGOL
RSA3000E Programming Guide 4-23
:DISPlay:DDEMod:TRACe<n>:X[:SCALe]:RPOSition
Syntax
:DISPlay:DDEMod:TRACe<n>:X[:SCALe]:RPOSition LEFT|CENTer|RIGHt
:DISPlay:DDEMod:TRACe<n>:X[:SCALe]:RPOSition?
Description
Sets the position from which the X-axis scale reference value is calculated for the specified trace.
Queries the position from which the X-axis scale reference value is calculated for the specified trace.
Parameter
Name
Type
Range
Default
<n>
Discrete
1|2|3|4
--
--
Keyword
LEFT|CENTer|RIGHt
LEFT
Return Format
The query returns LEFT, CENT, or RIGH.
Example
The following command sets the position from which the X-axis scale reference value is calculated for Trace
1 to LEFT.
:DISPlay:DDEMod:TRACe1:X:SCALe:RPOSition LEFT
The following query returns LEFT.
:DISPlay:DDEMod:TRACe1:X:SCALe:RPOSition?
:DISPlay:DDEMod:TRACe<n>:X[:SCALe]:SPAN
Syntax
:DISPlay:DDEMod:TRACe<n>:X[:SCALe]:SPAN <real>
:DISPlay:DDEMod:TRACe<n>:X[:SCALe]:SPAN?
Description
Sets the X-axis width of the selected trace.
Queries the X-axis width of the selected trace.
Parameter
Name
Type
Range
Default
<n>
Discrete
1|2|3|4
--
<real> Consecutive Real Number
Time-Domain Data: 0 to
(1e+12)
Frequency-Domain Data:
0Hz to 1THz
50 (38.2812 us)
/3.125 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 width of the selected trace in scientific notation.
Example
The following command sets the X-axis width of Trace 1 to 50.