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- Main Features
This chapter provides some general information the user should be aware of before using this
oscilloscope. It contains:
4.1 Oscilloscope setup
4.2 Trigger
4.3 Data Acquisition
4.4 Waveform scaling and positioning
4.5 Waveform measurement
3.12 Oscilloscope Setup
While operating the oscilloscope, the AUTOSET feature will, in most cases, be used.
Autoset: This function can be used to adjust the horizontal and vertical scales of the oscilloscope
automatically and set the trigger coupling, type, position, slope, level and mode, etc., to acquire a stable
waveform display. Press the AUTO button to engage Autoset.
3.13 Trigger
The trigger determines when the oscilloscope begins to acquire data and display a waveform. Once a
trigger is properly set up, the oscilloscope can convert unstable displays or blank screens to meaningful
waveforms. Basic information regarding triggering is provided below.
Trigger Source: The trigger can be generated from either CH1 or CH2. The input channel can trigger
normally whether or not the input signal is displayed.
Trigger Type: The oscilloscope has six types of triggers: Edge, Video, Pulse Width, Slope, Overtime,
and Alter. Press the TRIG button to engage this feature.
Edge Trigger Triggering occurs when the input trigger source crosses a specified level in a
specified direction.
Video Trigger performs a field or line trigger through standard video signals.
Pulse Width Trigger can trigger normal or abnormal pulses that meet trigger conditions.
Slope Trigger uses the rise and fall times on the edge of a signal for triggering.
Overtime Trigger occurs after the edge of a signal reaches the set time.
Alter Trigger uses a specific frequency to switch between two analog channels (CH1 and
CH2), so that the channels will generate swap trigger signals.
