The Civil Aviation (Aeronautical Radio Frequency Spectrum Utilization) Regulations
2. Interpretation
2. Interpretation
In these Regulations, unless the context otherwise requires—"air navigation services" means air traffic services, communication, navigation and surveillance, and aeronautical information services;"air navigation services facility" means any facility used, available for use, or designed for use in aid of navigation of aircraft, including airports, landing fields, any structures, mechanisms, lights, beacons, marks, communicating systems, or other instruments or devices used or useful as an aid to the safe taking off, navigation, and landing of aircraft and any combination of such facilities;"air navigation services provider" means an independent entity established for the purpose of operating and managing air navigation services and empowered to manage and use the revenues it generated to cover its costs;"alternative means of communication" means a means of communication provided with equal status, and in addition to the primary means;"Authority" means the Kenya Civil Aviation Authority established under section 4 of the Act;"double channel simplex" means Simplex using two frequency channels, one in each direction."duplex" means a method in which telecommunication between two stations can take place in both directions simultaneously;"frequency channel" means a continuous portion of the frequency spectrum appropriate for a transmission utilizing a specified class of emission;"operational control communications" means communications required for the exercise of authority over the initiation, continuation, diversion or termination of a flight in the interest of the safety of the aircraft and the regularity and efficiency of a flight;"primary means of communication" means the means of communication to be adopted normally by aircraft and ground stations as a first choice where alternative means of communication exist;"Provider" means an air navigation services provider;"simplex" means a method in which telecommunication between two stations takes place in one direction at a time;"single channel simplex" means a Simplex using the same Frequency Channel in each direction; and"very high frequency digital link" means a constituent mobile sub-network of the aeronautical telecommunication network, operating in the aeronautical mobile Very High Frequency band. In addition, the very high frequency digital link may provide non-ATN functions such as, for instance, digitized voice.Source: Kenya Law