Math FFT
4.
Turn the Vertical
Scale
knob to ensure that the entire waveform remains on
the screen. The oscilloscope may display erroneous FFT results (by adding
high frequency components) if the entire waveform is not visible.
5.
Turn the Horizontal
Scale
knob to provide the resolution you want in the
FFT spectrum.
6.
If possible, set the oscilloscope to display many signal cycles.
If you turn the Horizontal
Scale
knob to select a faster setting (fewer cycles),
the FFT spectrum shows a larger frequency range, and reduces the possibility
of FFT aliasing. (See page 66,
.) However, the oscilloscope also
displays less frequency resolution.
To set up the FFT display, follow these steps:
1.
Push the
Math
button to see the Math Menu.
2.
Push
Operation
►
FFT
.
3.
Select the
Source
channel for the Math FFT.
In many cases, the oscilloscope can produce a useful FFT spectrum even if the
YT waveform is not triggered. This is especially true if your signal is periodic
or random (noisy).
NOTE.
Trigger and position any transient or burst waveforms as closely as
possible to the center of the screen.
62
TPS2000B Series Digital Oscilloscope User Manual
Содержание TPS2012B
Страница 1: ...xx TPS2000B Series Digital Storage Oscilloscope ZZZ User Manual P071273302 071 2733 02...
Страница 2: ......
Страница 3: ...TPS2000B Series Digital Storage Oscilloscope ZZZ User Manual xx www tektronix com 071 2733 02...
Страница 8: ......
Страница 22: ...Compliance information xiv TPS2000B Series Digital Oscilloscope User Manual...
Страница 26: ...Preface xviii TPS2000B Series Digital Oscilloscope User Manual...
Страница 40: ...Getting Started 14 TPS2000B Series Digital Oscilloscope User Manual...
Страница 93: ...Math FFT TPS2000B Series Digital Oscilloscope User Manual 67...
Страница 96: ...Math FFT 70 TPS2000B Series Digital Oscilloscope User Manual...
Страница 170: ...Appendix D Cleaning 144 TPS2000B Series Digital Oscilloscope User Manual...
Страница 184: ...Index Z Zoom 58 FFT 68 Horiz menu 104 Window Zone 104 105 158 TPS2000B Series Digital Oscilloscope User Manual...