Trigger Settings

Select the desired trigger settings.

Mode - Select the Auto or Normal trigger mode.

Auto: In this mode, the oscilloscope automatically triggers and captures waveforms when you start a data acquisition. Use the auto trigger mode for signals other than low-repetitive-rate signals and for unknown signal levels.
Normal: When you start a data acquisition in this mode, a trigger must be detected before an acquisition can be completed. Use the normal trigger mode for low-repetitive-rate-signals or when auto trigger is not required.

Type - Select the desired trigger type (Edge, Glitch, or TV).

Edge: The Edge trigger can be used with analog and digital circuits. An edge trigger occurs when the trigger input passes through a specified voltage level with the specified slope.
Glitch: The Glitch trigger occurs when a pulse/glitch is found in a waveform that matches the pulse definition.
TV: The TV trigger is used to trigger on standards of NTSC, PAL, or SECAM standard video waveforms on either positive or negative composite video signals.

Source - Select the desired trigger source (Channel 1, Channel 2, or External). The external trigger source can be used as a source in several trigger types. The trigger source will be the analog channel available on your oscilloscope.

Hold Off - Enter the desired trigger hold-off time.

Level - Enter the trigger level which determines the voltage point on the waveform where the trigger occurs.

Coupling - Select the desired coupling mode (DC, AC, LF Reject, or HF Reject).

DC: When the DC (direct current) coupling is selected, both DC and AC components of the input waveform are passed to the oscilloscope. DC coupling is useful for capturing trigger waveforms as low as 0 Hz that do not have large DC offsets.
AC: The AC (alternating current) coupling is useful for capturing trigger waveforms with large DC offsets.
LF Reject: The LF Reject (low frequency reject) coupling places a 35 kHz high-pass filter in series with the trigger waveform. This coupling removes any unwanted low frequency components from a trigger waveform, such as power line frequencies, that can interfere with proper triggering. Use this coupling to get a stable edge trigger when your waveform has low frequency noise.
HF Reject: The HF Reject(high frequency reject) coupling adds a low-pass filter with the 3 dB point at 35 kHz. This coupling removes high-frequency noise, such as AM or FM broadcast stations from the trigger path.

Edge Trigger Settings

Slope - Select the desired slope which determines whether the oscilloscope finds the trigger point on the rising, falling, alternate or the either edge of a waveform.

Glitch Trigger Settings

Polarity - Select the positive or negative sync pulse polarity for the glitch you want to capture.

Mode - Select the desired time qualifier and enter the value.

TV Trigger Settings

Standard - Select the desired video standard.

Mode - Select a mode to define the portion of the video signal you would like to trigger on.

Odd fields and Even fields: Trigger on the rising edge of the first serration pulse of Odd or Even (interlaced standards only)
All fields: Trigger on the rising edge of the first pulse in the vertical sync interval.
All lines: Trigger on all horizontal sync pulses.

Custom Line - Enter the desired TV custom line. You can enable or disable custom line for the Odd fields and Even fields modes by selecting the checkbox.