scope:

The electronic equipment specified herein is a Video Mapping Unit which provides five individual mapping assemblies which may operate simultaneously and each may utilize different maps. Each mapping assembly generates analogue video which is an electronic reproduction of a correctly oriented and detailed map of an area from 10 to 250 nautical mile radius for simultaneous display with aircraft targets on ASR, ARSR, ASRDS PPI indicators and FAA Radar Bright Display Equipment used in conjunction with the associated radar system. This electronic equipment retains correct scale factors when radar range scales are expanded or off centered presentations are used. The equipment provides Air Traffic controllers with reference map data on their displays depicting airways for safe and expeditious movement of air traffic. Design features shall be incorporated in the equipment to provide for reliability and ease of maintenance during continuous operation. Modular construction and solid state design except for CRTs and photo multiplier tubes commensurate with present state-of-the-art shall be used throughout.