What communications systems are typically installed on the 787?

What communications systems are typically installed on the 787?

• A. VHF radios, satellite communications, ACARS, and CPDLC.
• B. Only VHF radios.
• C. Analog intercom and passenger telephones.
• D. Infrared data link only.

Answer: (A)

A modern 787 relies on multiple communications paths to stay connected with air traffic control and ground systems, no matter where the aircraft is. VHF radios handle standard voice contacts within line-of-sight ranges, while satellite communications (SATCOM) provide reliable voice and data links when VHF isn’t available, such as over oceans or remote regions. ACARS delivers automated data messaging between the aircraft and ground systems, supporting operations like flight status and maintenance reporting. CPDLC works over the ACARS data link to exchange text-based clearances and operational messages with ATC, which helps reduce voice workload and speeds updates. This combination—VHF for voice, SATCOM for global coverage, ACARS for data, and CPDLC for datalink clearances—best reflects what the 787 typically includes. The other options omit one or more essential systems or refer to cabin-only equipment, which aren’t part of the aircraft-to-ATC communications suite.

A modern 787 relies on multiple communications paths to stay connected with air traffic control and ground systems, no matter where the aircraft is. VHF radios handle standard voice contacts within line-of-sight ranges, while satellite communications (SATCOM) provide reliable voice and data links when VHF isn’t available, such as over oceans or remote regions. ACARS delivers automated data messaging between the aircraft and ground systems, supporting operations like flight status and maintenance reporting. CPDLC works over the ACARS data link to exchange text-based clearances and operational messages with ATC, which helps reduce voice workload and speeds updates. This combination—VHF for voice, SATCOM for global coverage, ACARS for data, and CPDLC for datalink clearances—best reflects what the 787 typically includes. The other options omit one or more essential systems or refer to cabin-only equipment, which aren’t part of the aircraft-to-ATC communications suite.