Demystifying the HD3’s Digital Trigger
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The digital trigger system on the HD3 series has a single triggering and signal path. The signal is digitized by the ADC and then the trigger system looks at the digitally processed data to determine when to trigger.
Digital triggers enable higher trigger accuracy and trigger sensitivity. Trigger accuracy ensures that you can set very accurate triggers on specific parts of a signal, so they don't trigger on the wrong part or get false triggers. Trigger sensitivity refers to the minimum signal amplitude required for a scope to accurately detect a trigger event- or how sensitive the trigger is to small voltages. With higher trigger sensitivity, you can reliably trigger on very small signals on screen.
The HD3’s digital trigger is just one of the many features that makes this scope so powerful.