Tektronix RSA2200A, User Manual

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Product Overview
RSA2203A & RSA2208A User Manual
1- 5
The method actually used to concurrently acquire signals in a certain frequency
range is not bandpass filters, but FFT (Fast Fourier Transformation). The
RSA2203A or the RSA2208A first acquires a series of frames of data in the time
domain, as shown in Figure 1--5, and then performs the FFT process for each
frame. This method enables continuous analysis of spectra and ensures the
capture of real-time phenomenon such as the W-CDMA burst signal. The
RSA2203A and the RSA2208A are equipped with a 51.2 MHz A/D converter to
analyze the spectrum by single scanning for spans up to 10 MHz.
F F F
F F
Frame
Time
Figure 1- 5: Frame acquisition