Which VHF radio is designated for ACARS data communication?

The VHF radio designated for ACARS data communication on the A320 is the third VHF radio. This radio is specifically used for the Aircraft Communications Addressing and Reporting System (ACARS), which allows automated short messages to be sent and received between the aircraft and ground stations. ACARS is critical for operational efficiency since it handles various tasks, including maintenance data transmission, flight plan updates, and communication with air traffic control.

VHF radios 1 and 2 primarily handle voice communications, which are essential for pilot-to-pilot and pilot-to-controller interactions. Meanwhile, VHF radio 3 is dedicated to ACARS, ensuring that this crucial data communication service operates independently and effectively. The presence of a dedicated VHF radio for ACARS helps maintain the integrity and reliability of message transmissions, which are vital for flight operations and safety management.