Rigol DS1000E Series

RIGOL
© 2008 RIGOL Technologies, Inc.
User’s Guide for DS1000E, DS1000D Series
2-13
Key points:
FFT Resolution: the quotient between
sampling rate and number of FFT
points. With a fixed FFT points, the lower sampling rate can insure better
resolution.
Nyquist Frequency
The highest frequency that any real-
time digitizing oscilloscope can acquire
with
out aliasing. It’s normally half of the sample rate. This frequency is called
the Nyquist frequency. Frequency above the Nyquist frequency will be under
sampled, causing a situation known as aliasing.
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