Off Bore Sight Angle
In monopulse SSR, the angle (calculated by the OBA processor) by which a target is off (away from) the bore sight, within the beam width of the antenna.
See Bore Sight. Off-Line Outside operational execution. Off-Line Input Input of data to system or application that is not directly connected to the actual operational environment. Off-Route Traffic Encompasses all GAT flying outside the published ATS Route Network. Off-Time The hours a particular individual or groups of individuals are not normally required to be at the workplace. (Tepas and Monk, 1987). Omega Ground-based, Very-Low Frequency (VLF) Long-Range Navigation system of the hyperbolic type, covering the entire Earth down to the surface from eight-ground-based transmitters. It provides world-wide, all-weather radio-navigation capability to air and surface users. One-on-one Approach In one-on-one approaches, a supporting peer or a mental health professional facilitates the discussion and guides the other person towards a plan of action. On-Line During operational execution. On-Line Input Input of data to system or application that is directly connected to the actual operational environment. On-Route Traffic Encompasses all GAT flying along the published ATS Routes Network. On-Site Processing Delay (ERSS) The time expressed in seconds between the moment a radar target for a given aircraft is detected and the moment when the corresponding report starts to be transmitted. On-the-Job Training The integration in practice of previously acquired job related routines and skills under the supervision of a qualified coach in a live traffic situation. The training enables student controllers to check out as operational controllers at a specific operational unit. On-the-Job Training Instructor A rated Air Traffic Controller with an Air Traffic Control Licence endorsed with a current qualification that permits the holder to carry out instruction in the operational environment for which the rating is issued. (Ref. Developed by Licensing Work Group). Open System Characteristics A system that has no feedback loop to control the process of the system, resulting in wild fluctuations of the output(s) according to the input variation(s). Open Systems Interconnection A protocol Architecture. A set of protocols used to implement the OSI reference model.