Agilent Technologies ESA Series User's/Programmer's Reference page 65

Averages signal amplitudes across measurement points to reduce
variations for noisy signals.
• VBW filtering.
Filtering the video is a form of averaging the video signal.
When trace average is on (
shown on the left side of the display. When
the analyzer chooses the type of averaging to be used as shown in
Figure 2-2 on page
manually, the analyzer uses that type without regard to the other
analyzer settings and sets
Key Access:
Video Avg
Pwr Avg
Accesses the
EMI Res BW
6 dB bandwidths of
only available if Option 1DR (narrow resolution bandwidth) is installed
and the span is less than 5 MHz.
This function is set to
other value using the
Key Access:
Chapter 2
,
BW/Avg
60. When one of the average types is selected
Avg Type
BW/Avg
Video averaging averages the data as appropriate for
the y-axis scale. When
VAvg appears on the left side of the analyzer display if
is On.
Average
Key Access:
BW/Avg
Power averaging is performed by converting the trace
data from logarithmic to linear power units, and then
averaging the power trace data. When
is selected, PAvg appears on the left side of the
Avg
analyzer display if
Key Access:
BW/Avg
menu keys and allows you to choose between
EMI Res BW
, and
120 kHz 9 kHz
when the resolution bandwidth is set to any
None
Resolution BW
BW/Avg
Front-Panel Key Reference
, the Average Type is
Average (On)
Avg Type (Auto)
to .
Man
,
Avg Type Video Avg
,
Avg Type
Avg Type
is On.
Average
,
Avg Type
. The 200 Hz bandwidth is
200 Hz
key.
BW/Avg
is selected,
is selected,
,
Pwr
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