Aviation

ACARS A digital datalink protocol carrying short text messages and automated status reports between aircraft and ground systems — airline operations centers and air traffic control — over VHF, HF, or… Protocol ADS-B A surveillance protocol under which an aircraft automatically and continuously broadcasts its GNSS-derived position, altitude, velocity, and identity for reception by ground stations and nearby aircraft, without requiring radar interrogation. Protocol ADS-C A surveillance protocol in which an aircraft's position and status reports are transmitted to air traffic control under an agreed contract defining reporting triggers, used primarily in oceanic and remote… Protocol AeroMACS A broadband wireless communications standard providing high-bandwidth connectivity between aircraft, ground vehicles, and airport systems specifically for airport surface operations, distinct from lower-bandwidth enroute datalink technologies. Protocol Aeronautical Connectivity Aeronautical Connectivity is the communication connectivity used in Aviation environments to support aircraft operations and related onboard or ground-linked services. Service Model Aeronautical Telecommunication Network The ICAO-defined network-layer standard providing common addressing, routing, and application-support services across heterogeneous underlying aeronautical datalink media — VHF Data Link, satellite, and HF — enabling datalink applications to function… Concept/Framework Air-to-Ground Link An air-to-ground link is a communications link that enables data transfer between an aircraft and ground-based or space-based network systems. It is a mobility-sensitive transport path used for service, telemetry,… Concept/Framework Airborne Relay Airborne Relay is a communications relay carried by an aircraft, drone, or other airborne platform to extend coverage or bridge a gap by forwarding communications over terrain, distance, or damaged… Hardware Aircraft Telemetry Aircraft telemetry is the transmission of aircraft status, sensor data, and operational events to a receiving system on the ground or in another control domain. It supports analysis, maintenance, and… Operations Antenna Gain Antenna Gain is a measure of how effectively an antenna concentrates energy in a given direction compared with a reference antenna. It influences both transmit and receive performance. Hardware