Instructions
Chapter 2 Command Systems for GPSA and RTSA Modes  RIGOL 
RSA3000E Programming Guide  2-59 
:DISPlay:VIEW:SPECtrogram:HUE 
Syntax 
:DISPlay:VIEW:SPECtrogram:HUE <real> 
:DISPlay:VIEW:SPECtrogram:HUE? 
Description 
Sets the reference hue. 
Queries the reference hue. 
Parameter
Name 
Type 
Range 
Default 
<real> 
Consecutive Real Number 
0 to 359.9 
0 
Remarks 
The reference hue indicates the hue value at the top of the color bar in the spectrogram. 
This command is only available for Spectrogram in RTSA mode or the view that contains the spectrogram. 
Return Format
The query returns the reference hue value in scientific notation. 
Example
The following command sets the reference hue value to 120. 
:DISPlay:VIEW:SPECtrogram:HUE 120 
The following query returns 1.200000e+02. 
:DISPlay:VIEW:SPECtrogram:HUE? 
:DISPlay:VIEW:SPECtrogram:POSition 
Syntax 
:DISPlay:VIEW:SPECtrogram:POSition <integer> 
:DISPlay:VIEW:SPECtrogram:POSition? 
Description 
Sets the trace to be displayed in the spectrogram. 
Queries the trace to be displayed in the spectrogram. 
Parameter
Name 
Type 
Range 
Default 
<integer> 
Integer 
1 to 8,192 (RTSA) 
1 
Remarks 
This command is only available for Spectrogram in RTSA mode or the view that contains the spectrogram. 
In the trace window displayed in the spectrogram mode, you can determine the trace either by the trace 
number or the trace time. Trace 1 indicates the latest trace. If you select the trace by trace time, the trace 
that is closest to the set time will be selected. 
Return Format
The query returns the displayed trace number in integer. 
Example
The following command sets the displayed trace number to 146. 
:DISPlay:VIEW:SPECtrogram:POSition 146 










