QUEBEC HAS implemented a datalink network, supplied by Arnav Systems, to track and communicate with Quebec Hydro Electric's helicopter fleet. The GeoNet system consists of 50 earth stations in five districts.
The network is being used for flight following and data messaging between Quebec Hydro's ground operations and its helicopters, and between aircraft. With the aircraft acting as relay stations, the system provides tracking and messaging coverage below and beyond radio and radar range.
Arnav says that its GeoNet is a bit-oriented VHF datalink which allows an aircraft to pass global-positioning-system (GPS) reports, differential-GPS corrections, text messaging and weather and video graphics for up to 2,580km (1,400nm) beyond line-of-sight of a ground repeater. Airborne equipment includes a datalink transceiver and cockpit control/display unit.
The Puyallup, Washington-based firm has expanded the GeoNet to accommodate the ACARS airline datalink, satellite communications and Mode S air-traffic-control datalink.
Source: Flight International