Siglent SDS6000L User Manual

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SDS6000L User Manual

46 i n t . s i g l e n t . c o m

Trigger coupling:

Coupling mode of the current trigger source. It is only valid when the trigger source

is C1~C8, EXT, or EXT/5.

 DC: All the signal’s frequency components are coupled to the trigger circuit for high-frequency

bursts or where the use of AC coupling would shift the effective trigger level.

 AC: The signal is capacitively coupled. DC levels are rejected. See the datasheet for details of the

cut-off frequency.

 HFR: Signals are DC coupled to the trigger circuit, and a low-pass filter network attenuates high

frequencies (used for triggering on low frequencies). See the datasheet for details of the cut-off

frequency.

 LFR: The signal is coupled through a capacitive high-pass filter network, DC is rejected and low

frequencies are attenuated. For stable triggering on medium to high-frequency signals. See the

datasheet for details of the cut-off frequency.

Trigger mode

 Auto: The oscilloscope will sweep without a set trigger. An internal timer triggers the sweep after

a preset timeout period so that the display refreshes continuously. This is helpful when first

analyzing unknown signals. Otherwise, Auto functions the same as Normal when a trigger

condition is found.

 Normal: Sweeps only if the input signal meets the trigger condition. Otherwise, it continues to

display the last acquired waveform.

 Single: Stops the acquisition and displays the last acquired waveform.

 Force: Force an acquisition, regardless of whether the input signal meets the trigger conditions or

not.

Trigger level

: The source voltage level or levels that mark the threshold for the trigger to fire. Trigger

levels specified in Volts normally remain unchanged when the vertical gain or offset is modified.

Trigger type:

See the chapter "Trigger" for details.

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Siglent SDS6000L Low Profile Digital Oscilloscope