Chapter 3 Functions of the Front Panel of RTSA
RIGOL
RSA3000E User Guide
3-27
Density Parameters
1.
Persistence
Sets how long the frequency/amplitude points displayed in the bitmap should
take to fade.
Remarks:
The persistence controls the length of time it will take for a point to go from
100% intensity to 0% intensity.
If the point in the bitmap does not appear again during the persistence time,
then the point will gradually become transparent until it disappears.
2.
Persistence Infinite
Enables or disables the infinite mode of the persistence display.
When off, it indicates the finite mode. At this time, you can define the
persistence time. You can observe the density of each point over the entire
measurement time.
When on, it indicates the infinite mode. Infinite mode shows the total
number of times a frequency/amplitude point appear during all the capture
intervals since starting the measurement. In the infinite mode, the intensity
for all the frequency/amplitude points is 100%, and there will be no fading,
but its density will change with the measurement time.
3.
Color Palettes
Selects different color palettes which allows optimization of visibility and
contrast for different signal environment. In RTSA mode, there are five color
palettes available for you to choose: Cool, Warm, Radar, Fire, and Frost. By
default, "Warm" is selected to be the color palette.
4.
Highest Density Hue
Sets the maximum density expressed in percentage.
Table 3-13 Highest Density Hue
Parameter
Remarks
Default
100
Range
0.1 to 100
Unit
None
Knob Step
0.1
Left/Right Arrow Key Step
Up/Down Arrow Key Step
at 1-1.5-2-3-5-7.5 step
5.
Lowest Density Hue
Sets the minimum density expressed in percentage.