The Zoom FFT is interesting because it blends complex down conversion, lowpass filtering, and sample rate change through decimation in a spectrum analysis application. The Zoom FFT method of spectrum ...

It’s Darren again, filling in for Jit. Last week, we discussed FFT functionality and VSA (vector-signal-analysis) software on a scope. Sometimes I hear this called spectrum analyzer software, but in ...

The FFT (Fast Fourier Transform) first appeared when microprocessors entered commercial design in the 1970s. Today almost every oscilloscope from high-priced laboratory models to the lowest-priced ...

The modern oscilloscope is no longer just a time-domain measurement tool, as test equipment vendors integrate logic, protocol, and spectrum analysis functions. (Image courtesy of Thinkstock). As ...