Test and measurement instrument having advanced triggering capability

A test and measurement instrument, comprising:

• an input configured to receive a signal-under-test;
• a user input configured to accept a first trigger event and a second trigger event from a user, and further configured to accept an event validation mode from a user;
• a first trigger decoder configured to trigger on an occurrence of the first trigger event and generate a first trigger signal;
• a second trigger decoder configured to trigger on an occurrence of the second trigger event occurring after the first trigger event and generate a second trigger signal;
• and
• an acquisition system configured to acquire the signal-under-test in response to the first trigger signal, and to store the acquired signal-under-test based on the event validation mode and whether the second trigger signal is generated by the second trigger decoder.