Tektronix TDS 200-Series Instructions

TDS2MM Measurement Module
TDS 200-Series Extension Module Instructions
35
FFT Windows
Windows reduce spectral leakage in the FFT waveform. The FFT
assumes that the YT waveform repeats forever. With an integral
number of cycles (1, 2, 3, ...), the YT waveform starts and ends at
the same amplitude and there are no discontinuities in the signal
shape.
A non-integral number of cycles in the YT waveform causes the
signal start and end points to be at different amplitudes. The
transitions between the start and end points cause discontinuities in
the signal that introduce high-frequency transients.
Time-domain
(YT) waveform
Without windowing
FFT
Discontinuities
Center 2048
data points

Tektronix TDS 200-Series Specifications

General

Brand	Tektronix
Model	TDS 200-Series
Category	Test Equipment
Language	English