Sensis is to produce 90 automatic dependent surveillance - broadcast (ADS-B) ground-based transceivers for the US Federal Aviation Administration's Capstone initiative in Alaska.
The units - including 75 for the universal access transceiver (UAT) general aviation datalink - are being installed under Phase 2 of the Capstone project, which aims to establish a low-altitude instrument flight rules route structure in mountainous south-east Alaska around Juneau, where there is no radar coverage below 10,000ft (3,050m).
Under Phase 1 of Capstone, ground-based UAT ADS-B transceivers were deployed in the Yukon-Kuskokwin delta to provide radar-like surveillance services in the relatively flat area around Bethel, Alaska.
The Phase 2 transceivers are the first to comply with minimum operational performance standards developed by US advisory body the RTCA on behalf of the FAA. The UAT transceivers have higher power and sensitivity.
Source: Flight International