Hantek DSO2D15 User Manual

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4. Press the Scale softkey, and turn the Multifunctional Knob to select the vertical scale.
5. Press the Offset softkey, and turn the Multifunctional Knob to set offset.
Multiplication and Division
Math operators perform arithmetic operations multiplication or division operation on any two analog
input channels. When you select multiplication or division, the Source 1 and Source 2 values are
multiplied or divided point by point and the result is displayed.
1. Press the [Math] button on the front panel to enter the MATH function menu.
2. Press the Source 1 and Source 2 softkey respectively, and turn the Multifunctional Knob to select the
source to do math operation. Analog channels (CH1 ~CH2) can all be used as Source 1 or source 2.
3. Press the Operator softkey and turn the universal to select * or / to make multiplication or division
operation. The resulting math waveform is displayed on the screen and labeled with “M”.
4. Press the Scale softkey, and turn the Multifunctional Knob to select the vertical scale.
5. Press the Offset softkey, and turn the Multifunctional Knob to set offset.
FFT Operation
FFT is used to compute the fast Fourier transform using analog input channels or reference waveform.
FFT takes the digitized time record of the specified source and transforms it to the frequency domain.
When the FFT function is selected, the FFT spectrum is plotted on the oscilloscope display as magnitude
in dBV versus frequency. The readout for the horizontal axis changes from time to frequency (Hertz)
and the vertical readout changes from volts to dB. The mathematical calculation function can convert
the 2048 center points of the time domain waveform into an FFT spectrum. The final FFT spectrum
contains 1024 points from DC (0 Hz) to the Nyquist frequency. Normally, the display screen compresses
the FFT spectrum horizontally to 250 points, but you can use "FFT zoom" to expand the FFT spectrum to
more clearly see the frequency components of each of the 1024 data points in the FFT spectrum. FFT
operation can facilitate the following works:
➢ Measure harmonic components and distortion in the system
➢ Measure the characteristics of the noise in DC power

Hantek DSO2D15 Specifications

General

Bandwidth	150 MHz
Channels	2
Sample Rate	1 GSa/s
Memory Depth	8 Mpts
Vertical Resolution	8 bits
FFT	Yes
Digital Voltmeter	Yes
Frequency Counter	Yes
Trigger Modes	Edge, Pulse, Video, Slope, Alternate
Display	7 inch TFT LCD
Vertical Sensitivity	2 mV/div ~ 10 V/div
Waveform Generator	25 MHz
Input Impedance	1 MΩ ± 2%
Interface	USB Host, USB Device