Instructions
RIGOL  Chapter 3 Functions of the Front Panel of RTSA 
3-30  RSA3000E User Guide 
The hues of the colors run from 0 to 359 and are shown below: 
In the hue ring, Hue 0 is red (255,0,0), Hue 120 is green (0,255,0), Hue 240 is blue 
(0,0,255), Hue 60 is yellow (255,255,0), Hue 180 is Cyan (0,255,255), and Hue 
300 is magenta (255,0,255). In Region A-B, the red value is constant (255); in 
Region C-D, the green value is constant (255); in Region E-F, the blue value is 
constant (255). There is no green in Region F-A, no blue in Region B-C, and no red 
in Region D-E. 
When adjusting the reference hue, you are adjusting the hue at the top of the 
color bar. The bottom of the color bar shows the hue that is 240 degrees clockwise 
from the reference hue. 
5.  Ref Hue Pos 
Sets the position of the reference hue displayed in the graticule. Any amplitudes 
higher than the reference position are displayed as black. 
Table 3-18 Reference Hue Position 
Parameter 
Remarks   
Default 
100 
Range 
Max (10%, bottom hue value 
+ 10%) to 100.0 
Unit 
None 
Knob Step 
1 
Left/Right Arrow Key Step 
Up/Down Arrow Key Step 
at 1-1.5-2-3-5-7.5 step 
6.  Bottom Hue Pos 
Sets the bottom hue position displayed in the graticule. Any amplitudes lower 
than the bottom hue position are displayed as black. 










