Tektronix TDS1000- Manuel d'utilisateur Page 137

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Math FFT
TDS1000/2000-Series Digital Oscilloscope User Manual
119
Math FFT option Settings Comments
Source CH1
CH2
CH3*
CH4*
Selects the channel used as the FFT
source
Window Hanning
Flattop
Rectangular
Selects the FFT window type; for
details, refer to page 120
FFT Zoom X1
X2
X5
X10
Changes the horizontal magnification
of the FFT display; for details, refer
to page 124
* Available only on 4-channel oscilloscopes.
Pos:250.0 kHZ
CH 1 10dB
Trig’d
Hanning50.0 kHz (1.00 MS/s)
MATH
M
Hanning
FFT
CH1
Fundamental
frequency
component
1
234 5
Frequency
component
1. Frequency at the center gratic ule line
2. Vertical scale in dB per division (0 dB = 1 V
RMS
)
3. Horizontal scale in frequency per division
4. Sample rate in number of samples per second
5. FFT window type
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