REL #27 How (much) does FFT speed up a SA?
In this video, I investigate the performance gain by FFT functions in a Spectrum Analyzer (SA), by doing measurements on a Rohde & Schwarz FPC1500. I also come back to the question of whether the Rohde & Schwarz CMU200 uses FFT for its SA functionality, or not.
00:00 Introduction
00:28 Comparing swept-mode and FFT architectures
03:44 Setting the sweep and the FFT modes on the FPC1500
07:45 Measurement results for different RBW @ 10MHz spam
12:37 Measurement results for different RBW and 9 different spam values
14:28 Does the SA in the CMU200 use FFT or not?
16:00 Wrapping up
A detailed file with measurement results for different RTB as well as different span values: https://github.com/RudisElectronicsLa...