RIGOL DSA875 - Manual (Page 114)

RIGOL Chapter 2 Front Panel Operation
User’s Guide for DSA800 Series 2-62
OBW
Measurement Interface:
Figure 2-17 OBW Measurement Interface
Measurement Results: occupied bandwidth and transmit frequency error.
 Occupied Bandwidth: integrate the power within the whole span and then
calculate the bandwidth occupied by the power according to the specified
power ratio.
 Transmit Frequency Error: difference between the center frequency of the
channel and the center frequency of the analyzer.
Measurement Parameters: average number, average mode, max hold, span
and power ratio.
1. Avg Num
Specify the number of averages used when calculating the measurement
result and the default is “Off”. You can use the numeric keys, knob or direction
keys to modify this parameter.