Tektronix TDS2014 User Manual

Math FFT
TDS1000/2000-Series Digital Oscilloscope User Manual
123
Nyquist frequency
(one-half sample rate)
Frequency
Amplitude
Aliased frequencies Actual frequencies
Eliminating Aliases
To eliminate aliases, try the following remedies:
H Turn the SEC/DIV knob to set the sample rate to a faster setting.
Since you increase the Nyquist freque ncy as you increase the
sample rate, t he aliased frequency components should appear at
their proper frequency. If too m any frequency components are
shown on the screen, you can use the FFT Zoom option to
magnify the FFT spectrum.

Tektronix TDS2014 Specifications

General

Channels	4
Bandwidth	100 MHz
Sample Rate	1 GS/s
Record Length	2.5k points
Vertical Resolution	8 bits
Vertical Sensitivity	2 mV/div to 5 V/div
Timebase Range	5 ns/div to 50 s/div
Display Resolution	320 x 240 pixels
Display	5.7 inch color LCD
Trigger Types	Edge, Video
Interface	USB
Input Impedance	1 MΩ
Power Requirements	100 to 240 V