||ALAS is a simple, light weight, low cost peripheral that works with any existing 1090ES, or UAT avionics installation. Normal air-to-ground and air-to-air ADS-B transmissions are not interrupted. ALAS is also designed to be compatible with any nation´s existing ADS-B ground infrastructure.
||100% of CONUS, GOMEX, Caribbean, NAT & NOPAC by 2016
100% of remaining requirements by 2019
||99.99% by 2016, 99.999% by 2019
||>3,000 aircraft per satellite-gateway pair (approx 1,800sm diameter)
||< 200ms from aircraft to ground, < 300ms end-to-end
||Displayed position difference between the RF line-of-sight derived position and the Space Based
ALAS derived position for the same target in the same UTC second was less than 50ft
98% of the time.
||UNIQUELY SECURE. ALAS establishes a unique two-way link with each aircraft that resists intrusion, jamming or spoofing and is the only form of ADS-B that can be easily encrypted. The simple tamper-proof design can also incorporate a self-powered backup system that will continue to broadcast an aircraft's position in the event of an unauthorized shutdown of the aircraft's primary ADS-B transponders
||HIGH. The relatively low cost and simplicity of the system architecture makes
enhanced coverage, availability and capacity possible with the addition of more
satellites and/or ground stations
||READY ALMOST IMMEDIATELY. The technology has been flight tested for more than 100 hours. Globalstar has launched 24 new Second Generation ALAS-capable satellites in the last two years. Essential Services could be deployed as early as 3Q2016 and Critical Services NLT 2019.
||LOW. Buy-in and reoccurring costs for ANSP´s is minimal since ALAS requires no new satellites, or additional technology in space. It is also designed to interface easily with existing ADS-B ground infrastructure. The price point for Part 121 avionics is less than $40k and installation should be in the 20-25 MH range for most commercial aircraft.