Hantek DSO 1202B User Manual

Basic Operation
DSO1000B Series HandHeld Oscilloscope User Manual 18
Invert
Off
On
Inverts the waveform relative to the reference level.
Ground Coupling
Used to display a zero-volt waveform. Internally, the channel input is connected with a zero-volt
reference level.
Fine Resolution
In the fine resolution setting, the vertical scale readout displays the actual VOLTS setting. The
vertical scale changes only after you adjust the VOLTS control and set to coarse.
Remove Waveform Display
To remove a waveform from the screen, first push the menu button to display the vertical menu,
then push again to remove the waveform. A channel waveform which is unnecessary to be
displayed can be used as a trigger source or for math operations.
3. VOLTS
Control the oscilloscope to magnify or attenuate the source signal of the channel waveform. The
vertical size of the display on the screen will change (increase or decrease) to the ground level.
Also you may use the key F3 to switch between coarse and fine.
4. MATH MENU: Display the waveform math operations. See the table below for details.
The MATH menu contains source options for all math operations.
Operations
Source Options
Comments
＋
CH1+CH2
Add Channel 1 to Channel 2.
－
CH1-CH2
Subtract the Channel 2 waveform from the
Channel 1 waveform.
CH2-CH1
Subtract the Channel 1 waveform from the
Channel 2 waveform.
FFT CH1 or CH2
Three types of window available for selection:
Hanning, Flattop, Rectangular.
Zoom: Use the FFT Zoom button to adjust the
window size.
Scale: x1, x2, x5, x10.
Note: All selected menus are highlighted in orange.
5.3.1 Math FFT
This chapter elaborates how to use the Math FFT (Fast Fourier Transform). You can use the Math
FFT mode to convert a time-domain (YT) signal into its frequency components (spectrum), and to
observe the following types of signals:
 Analyze harmonics in power cords;
 Measure harmonic content and distortion in systems;
 Characterize noise in DC power supplies;
 Test impulse response of filters and systems;

Hantek DSO 1202B Specifications

General

Brand	Hantek
Model	DSO 1202B
Category	Test Equipment
Language	English