User manual

User’s Guide for DSA800 Series
Chapter 2 Front Panel Operation RIGOL
2-19
Start
Peak Search
Adjust Ref Level
Peak > Ref Level?
Decrease maximum
mixing level
Stop
Increase maximum
mixing level
Large signal?
Auto Scale
N
N
Y
Y
Figure 2-8 Process of Auto Range
RF Preamp
Set the status of the preamplifier located at the front of the RF signal path. Turning
on the preamplifier reduces the displayed average noise level in order to
distinguish small signals from the noise when the signal under measurement is
small.
Key Points:
The corresponding icon will be displayed in the status bar at the left side of
the screen when the preamplifier is On.