What does the ECU transmit once it matches an intercepted signal with pre-programmed data?

The selected answer refers to the role of the ECU (Electronic Control Unit) in processing information received from intercepted signals. Once the ECU successfully matches the intercepted signal with its pre-programmed data, the next logical step is to inform relevant personnel about the finding. This is accomplished through an alert sent to the aircrew interfaces.

These interfaces are integral components of the aircraft's systems, designed to keep the aircrew informed and equipped to respond appropriately to any potential threats or changes in their operational environment. By transmitting alerts directly to the aircrew, the ECU ensures that those in charge of piloting can take immediate and informed actions based on the information received, thereby enhancing situational awareness and safety.

This ability to quickly relay information to the aircrew through their interfaces is crucial for timely decision-making during flight operations, especially in complex scenarios involving signal interceptions.