Tektronix RSA2200A, User Manual

Page: 222 / 354

FFT and RBW
3- 102
RSA2203A & RSA2208A User Manual
RBW/FFT Menu
Figure 3--77 shows the RBW/FFT menu structure.
RBW/FFT
Auto / Man / FFT
RBW/FFT = Man
RBW
RBW Filter Shape...
Extended Res.
Rect / Gaussian / Nyquist / Root Nyquist
Off / On
RBW/FFT = FFT
FFT Points
FFT Window... (refer to page 3--106)
Extended Res.
Off / On
Spectrum Analyzer, S/A with Spectrogram
Real Time S/A
FFT Start Point
FFT Overlap
FFT Window... (refer to page 3--106)
Figure 3- 77: RBW/FFT menu tree
The RBW/FFT menu has the following controls in the Spectrum Analyzer and
the S/A with Spctrogram modes:
RBW/FFT. Selects whether to set RBW and FFT parameters automatically or
manually.
H
Auto. Sets RBW automatically with the span setting. The filter shape is set
to Gaussian.
H
Man.
Sets RBW and selects the filter manually with the
RBW
and
RBW Filter Shape... side keys.
H
FFT. Sets the FFT points and window manually with the FFT Points and
FFT Window... side keys. The result of FFT processing is displayed as is,
without RBW processing.
When RBW/FFT is set to Man.
RBW.
Sets RBW when Man is selected in RBW/FFT.
Range: 2 kHz to 2 MHz (the default is 80 kHz)
Spectrum Analyzer and
S/A with Spectrogram
Modes