Trig

The "Trig" switch is used to configure the trigger coupling.

In position "AC" the trigger signal is capacitor coupled. The DC component is filtered. This means that signals lower than the lowest frequency the oscilloscope allows, cannot be triggered. In this simulation however there is no low frequency limit. In position "DC" all signal components starting at 0Hz influence triggering.

In position ""HF" ( "high frequency"), low frequent signal components are filtered, in position "LF" ("low frequency") high frequent signal components are filtered. These positions are used to filter noise. Noise amplitudes can trigger unwanted sweeps.

In position "~" the signal is triggered by the power supply frequency ( 50Hz, or U.S. 60Hz).

The Simulation does not support real-time triggering. Therefore the oscilloscope always behaves as if the "Trig" switch is set to ""AC." The switch can be moved, but settings different from "AC" do not influence the signal processing.