RIGOL DSA875 - Manual (Page 115)

Chapter 2 Front Panel Operation RIGOL
User’s Guide for DSA800 Series 2-63
Table 2-38 Average Number for OBW Measurement
Parameter Description
Default 10
Range 1 to 1000
Unit N/A
Knob Step 1
Direction Key Step 1
2. Avg Mode
Set the average operation mode to “Exp” or “Repeat” and the default is “Exp”.
 When “Exp” is selected, the result is the exponential average of the
current N (N is specified in “Avg Num”) measurement results.
 When “Repeat” is selected, the result is the arithmetic average of the
current N (N is specified in “Avg Num”) measurement results.
3. Max Hold
Enable or disable max hold and the default is “Off”.
 When Max Hold is enabled, each measurement result is compared with
the previous result and the maximum is displayed.
 When Max Hold is disabled, the current measurement result is displayed.
 Max Hold and average measurement mode are mutually exclusive and
average measurement mode will be automatically disabled when Max
Hold is enabled.
4. OBW Span
Set the frequency range of integration. This span which is the same with the
span of the analyzer is the frequency range for the sweep. Modifying this
parameter will also change the span of the analyzer. You can use the numeric
keys, knob or direction keys to modify this parameter.