RIGOL  Chapter 1 Quick Start 
User’s Guide for DSA800/E Series 
Front Panel Key Backlight 
 
The on/off state and the color of the backlights of some keys at the front panel 
indicate the working state of the spectrum analyzer. The states are as listed below. 
 
1.  Power Switch 
 
  Flash on and off alternatively, in breathing state: indicate the unit is in 
stand-by state. 
  Constant on: indicate the instrument is in normal operating state. 
 
2.  TG* 
When the TG function is enabled, the backlight of TG turns on and turns off 
when the function is disabled. 
 
3.  Auto   
When Auto is pressed, the backlight turns on. The instrument starts sweeping 
within the full frequency range, searches for the signal with the maximum 
amplitude and moves it to the center of the screen. Then the backlight turns off. 
 
4.  Meas** 
The backlight of Meas turns on when VSWR or any of the advanced 
measurements is enabled and stays on until all measurement functions are 
disabled. 
 
Note:  
*This function is only available for DSA815-TG/DSA832-TG/DSA875-TG/DSA832E-TG. 
**This function is only applicable to DSA800/E installed with the corresponding option.