Tektronix TDS 200-Series Instructions

TDS2MM Measurement Module
TDS 200-Series Extension Module Instructions
37
Selecting an FFT Window
The TDS2MM Module provides three FFT windows. Each window
is a trade-off between frequency resolution and amplitude accuracy.
What you want to measure and your source signal characteristics
help determine which window to use. Use the following guidelines
to select the best window.
Window Measure Characteristics
Hanning Periodic
waveforms
Better frequency, poorer magnitude
accuracy than Flattop.
Flattop Periodic
waveforms
Better magnitude, poorer frequency
accuracy than Hanning.
Rectangular Pulses or
transients
Special-purpose window for waveforms that
do not have discontinuities. This is essen-
tially the same as no window.

Tektronix TDS 200-Series Specifications

General

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