ATSS has full maintenance and operational responsibility for multiple disciplines, systems and services: Environmental: Lighted Navigational Aids Systems, Industrial Engine Generators, Industrial Heating, Ventilation, and Air-Conditioning Systems, Industrial Power Sources/Power-Conditioning Systems, Central Control Monitoring System, and Industrial Electronic Controls Systems. Communications: Motorola, ITT or General Dynamics radios, Radio Communications Link Repeaters, Low Density Radio Communications Link Repeaters,, various voice switches, Tower Data Link Services, voice recorder systems, and UHF/ VHF/SATCOM.