User manual

User’s Guide for DSA800 Series

Chapter 2 Front Panel Operation RIGOL

2-87

Figure 2-24 N dB BW measurement

Key Points:

 When the measurement starts, the analyzer will search for the two points

which are located at both sides of the current point with N dB fall or rise in

amplitude and display the frequency difference between the two points. "---"

would be displayed if the search fails.

 You can use the numeric keys, knob or direction keys to modify the value of N,

for more details please refer to “Parameter Setting”.

Table 2-55 N dB BW parameter settings

Parameter

Explanation

Default

-3 dB

Range

-100 dB to 100 dB

Unit

Knob Step

0.1 dB

Direction Key Step

1 dB

Function Off

Turn off the opened noise marker or N dB BW measurement, but not the marker

itself.

N dB

Bandwidth