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The Next-Generation Air/Ground (A/G) Radio Communications System (NEXCOM) will provide a digital voice and data capability for air traffic control in United States airspace. The nationwide transition from today’s all-voice analog system to NEXCOM will take several years. Since digital interference characteristics differ markedly from those of analog radios,(More)
This paper investigates the feasibility of operating future terrestrial air/ground control links for unmanned aircraft (UA) systems (UAS) in the 5030–5091 MHz band. Any new service proposed for this band must be compatible with the existing Microwave Landing System (MLS) and with the aeronautical-mobile satellite (route) service (AMS(R)S), which also(More)
The FAA is currently in the process of developing a strategy for the implementation of the Aeronautical Mobile Airport Communications System (AeroMACS) in the National Airspace System (NAS). AeroMACS networks will provide high-data-rate communications in the airport environment in support of Next Generation Air Transportation System (NextGen) operations. At(More)
The amount of radio spectrum available for command and control (C2) radio links of unmanned aircraft (UA) systems (UAS), and the effectiveness with which that spectrum is used, will strongly affect the eventual number of remotely piloted UAS that can safely operate within U.S. airspace. In this paper we analyze several possible methods for utilizing(More)
The Federal Aviation Administration (FAA) is considering the use of the 5091-5150 megahertz (MHz) band for a future Airport Network and Location Equipment (ANLE) system. ANLE is visualized as a high-integrity, high-data-rate wireless local area network (WLAN) for the airport area, with terminals on the ground and on taxiing aircraft. The same frequency(More)
A nationwide aeronautical data communications network for air traffic services is being planned for en route implementation beginning in 2018. Operating the network will require tradeoffs between spectrum conservation and interference prevention. While it may not be possible to preclude radio-frequency interference entirely, it is important to keep(More)
The Federal Aviation Administration (FAA) is exploring the feasibility of clearing part of the 117.975-137 MHz air/ground (A/G) radio band for use by a VHF digital aeronautical data communications network beginning in the 2010-2015 time frame. The cleared subband would be taken from the 13.4 MHz of spectrum currently allocated to air traffic services (ATS)(More)