Agilent Technologies N9342C, Руководство пользователя

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3 Functions and Measurements
40 N9342C/43C/44C User’s Guide
Using the Average Detector and
Increased Sweep Time
The analyzer’s noise floor response may mask
low- level signals. Selecting the instruments
averaging detector and increasing the sweep time
will smooth the noise and improve the signal’s
visibility. Slower sweep times are necessary to
average noise variations.
1
Refer to “Reducing Input Attenuation" on
page 37, and follow steps 1, 2, and 3.
2
Press
[TRACE] > {More} > {Detector} > {Average}
to
select the average detector.
3
Press
[Sweep] > {Sweep Time}
to set the sweep
time to 500 ms.
Note how the noise appears to smooth out. The
analyzer has more time to average the values for
each of the displayed data points.
4
Press
[BW] > {Avg Type}
to change the average
type.
Figure 3-10 Using the average detector