User manual

RIGOL Chapter 2 Front Panel Operation
User’s Guide for DSA800 Series
2-64
EBW
Measurement Interface:
Figure 2-18 EBW Measurement Interface
Measurement Results: emission bandwidth, namely the bandwidth between
two points on a signal which are X dB below the highest point within the span.
During the measurement, the analyzer first determines the frequency (f
0
) of the
maximum amplitude point and then finds the two frequencies furthest below and
furthest above f
0
at which the signal amplitude is X dB below the maximum
amplitude. These frequencies are designated as f
1
and f
2
and the emission
bandwidth is f
2
-f
1
.
Measurement Parameters: average number, average mode, max hold, span
and X dB.
1. Avg Num
Specify the number of measurement 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.