Communications Definitions Flashcards
Aeronautical broadcasting service
A broadcasting service intended for the transmission of information relating to air navigation.
Aeronautical Fixed Service
A telecommunication service between specified fixed points provided primarily for the safety of air navigation and for the regular, efficienct and economical operation of air services.
Aeronautical fixed telecommunication network
A worldwide system of aeronautical fixed circuits provided, as part of the aeronautical fixed service, for the exchange of messages and/or digital data between aeronautical fixed stations having the same or compatible communications characteristics.
Aeronautical mobile service
A mobile service between aeronautical stations and aircraft stations, or between aircraft stations, in which survival craft stations may participate; emergency position indicating radiobeacon stations may also participate in this service on designated distress and emergency frequencies.
Aeronautical mobile service (R)
An aeronautical mobile service reserved for communications relating to safety and regularity of flight, primarily along national or international civil air routes.
Aeronautical Telecommunication service
A telecommunication service provided for any aeronautical purpose.
International telecommunication service
A telecommunication service between offices or stations of different states, or between mobile stations which are not in the same State, or are subject to different states.
Aeronautical fixed station
A station in the aeronautical fixed service
Aeronautical telecommunication station
A station in the aeronautical telecommunication service.
AFTN origin station
An AFTN station where messages and/or digital data are accepted for transmission over the AFTN.
Air Ground Control Radio Station
An aeronautical telecommunication station having primary responsibility for handling communications pertaining to the operation and control of aircraft in a given area
Aircraft station
A mobile station in the aeronautical mobile service, other than a survival craft station, located on board an aircraft.
Network Station
An aeronautical station forming a part of a radiotelephony network
Air ground communication
Two way communication between aircraft and stations or locations on the surface of the earth.
Blind Transmission
A transmission from one station to another station in circumstances where two way communication cannot be established but where it is believed that the called station is able to receive the transmission
Broadcast
A transmission of informationrelating to air navigation that is not addressed to a specific station or stations
Duplex
A method in which telecommunication between two stations can take place in both directions simultaneously.
Ground to air communications
One way communication from stations or locations on the surface of the earth to aircraft.
Radiotelephony network
A group of radiotelephony aeronautical stations which operate on and guard frequencies from the same family and which support each other in a defined manner to ensure maximum dependability of air ground communications and dissemination of air ground traffic
Readback
A procedure whereby the receving station repeats a recevied message or an appropriate part thereof back to the transmitting station so as to obtain confirmation of correct reception.
Simplex
A method in which telecommunication between two stations takes place in one direction at a time.
Telecommunication
Any transmission, emission or reception of signs, signals, writing, images, and sounds or intelligence of any nature by wire, radio, optical or other electromagnetic systems.
Aeronautical telecommunication agency
An agency responsible for operating a station or stations in the aeronautical telecommunication service.
Air report
A report from an aircraft in flight prepared in conformity with requirements for position, and operational and/or meteorological reporting.
Aircraft operating agency
The person, organizaiton or enterprise engaed in or offering to engage in, an aircraft operation.
ATS direct speech circuit
An aeronautical fixed service telephone circuit, for direct exchange of information between air traffic services units.
Primary frequency
The radiotelephony frequency assigned to an aircraft as a first choice for air ground communication in a radiotelephony network.
Secondary frequency
The radiotelephony frequency assigned to an aircraft as a second choice for air ground communication in a radiotelephony network.
