scope:

The equipment specified herein is the radar transmitter/receiver (T/R) subsystem of an Airport Surveillance Radar (ASR) system capable of providing rho-theta information on aircraft targets within a 60 nautical mile radius centered on the radar. The target rho-theta information is normally transmitted via coaxial cable or microwave link to a terminal control facility where it is displayed or utilized in some other manner for control of air traffic. The T/R subsystem consists of dual radar channels, an antenna unit, a control unit, and other required ancillary items. Major units of each radar channel are a transmitter, receiver, reply processor and necessary control circuits. The equipment may be installed in transportable buildings (each channel in a separate but colocated building) or in a single, fixed building. Design features are included to permit installation in either of the above types of facility; to permit interface with radar beacon, microwave link and other associated equipment; and to provide performance, reliability and maintainability characteristics consistent with the stringent requirements of air traffic control.