Af Rbw (Audio-Frequency Resolution Bw); How To Set Af Rbw; Sweep Type; How To Set Sweep Type - Keysight A Series User Manual

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SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers)

SA Mode Settings

When the Res BW/Video BW ratio exceeds 10,000, a

may appear to indicate that the Video BW filter has reached the maximum

capacity for averaging.

AF RBW (Audio-Frequency Resolution BW)

AF RBW - sets the audio-frequency resolution bandwidth for the selected

frequency (Default = Auto).

1. Press BW 2 >

2. Then choose from the following:

To change this setting from Man to Auto, press AF RBW twice.

The current AF RBW setting is shown at the bottom of the screen.

# AF RBW x.xx XHz (#) means manual setting.

When the Res BW/AF RBW ratio exceeds 10,000, a

appear to indicate that the AF RBW filter has reached the maximum capacity

for averaging.

In SA mode, the FieldFox uses two sweep types to process inputs signals. The

sweep type that is currently being used (FFT or Step) is displayed in the

lower-left corner of the FieldFox screen.

For a more comprehensive tutorial, see Spectrum Analysis Basics

(App Note 150) at

https://www.keysight.com/us/en/assets/7018-06714/application-notes/595

1. Press BW 2 >

2. Then choose from the following:

Couples AF BW to the Resolution BW in a 1-to-1 ratio.

Enter a AF BW value using the numeric keypad, the

arrows, or the rotary knob. Then press a multiplier if necessary or

press Enter. Setting AF BW higher than RBW may smooth the trace.

Keysight N9927-90020 User's Guide

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