Agilent Technologies N9010A - Manual (Page 32)

32 Chapter 1
Agilent EXA Signal Analyzer
Frequency and Time
Description Specifications Supplemental Information
Video Bandwidth (VBW)
Range Same as Resolution Bandwidth
range plus wide-open VBW
(labeled 50 MHz)
Accuracy
±6% (nominal)
in swept mode and zero span
a
a. For FFT processing, the selected VBW is used to determine a number of averages for FFT results. That
number is chosen to give roughly equivalent display smoothing to VBW filtering in a swept measure-
ment. For example, if VBW = 0.1
× RBW, four FFTs are averaged to generate one result.