Chapter 8 - Definitions of Radi Stations and Serviced Flashcards
Fixed service (Fixed station)
A service of radio-communication between specific fixed points
Types:
Aeronautical fixed service (aeronautical fixed station) - A fixed service intended for the transmission of information relating to air navigation, preparation for and safety of flight
Station
One or more transmitters or receivers or a combination of transmitters and receivers, including the accessory equipment, necessary at one location for carrying on a radio communication service. Each station shall be classified by the service in which it operates permanently or temporarily.
Mobile service
A service of radiocommunication between mobile and land stations, or between mobile stations
Stations:
- Land Station - not intended to be used while in motion
- Mobile station - intended to be used while in motion or during halts at unspecified points
Aeronautical mobile service
A mobile service between aeronautical stations and aircraft stations, or between aircraft stations, in which survival craft stations may also participate
Station:
Aeronautical station - A land station in the aeronautical mobile service. In certain instances an aeronautical station may be placed on board an aircraft.
Maritime mobile service
A mobile service between coast stations and ship stations, or between ship stations, in which survival craft stations may also participate
Types:
Port operations service - A maritime mobile service in or near port, between coast stations and ship stations or between ship stations, in which messages are restricted to those relating to the movement and the safety of ships and, in emergency, to the safety of persons
Stations:
- Coast Station - land station
- Ship Station - Mobile Station
- On-board communication station - A low-powered mobile station in the maritime in the maritime mobile service intended for use for internal communications on board
Ship’s emergency transmitter
A ship’s transmitter to be used exclusively on a distress frequency for distress, urgency or safety purposes
Broadcasting service
A radio communication service in which the transmissions are intended for direct reception by the general public. This service may include sound transmissions, television transmissions or other types of transmission
Survival Craft station
A mobile station in the maritime or aeronautical mobile service intended solely for survival purposes and located on any lifeboat, lifecraft or other survival equipment.
Land mobile service
A mobile service between base stations and land mobile stations, or between land mobile stations.
Stations:
- Base station - a land station carrying on a service with land mobile stations
- Land Mobile Station - mobile station capable of service movement within the geographical limits of a country or continent
Radiodetermination
The determination of position or the obtaining of information relating to position, by means of the propagation properties of radio waves
Radiodetermination service - radiodetermination station
Radionavigation Service
A radiodetermination service involving the use of radionavigation
Stations:
- Radionavigation Land Station
- Radionavigation Mobile Station
Types:
- Aeronautical
- Maritime
Radiolocation
Radiodetermination used for purposes other than those of radionavigation
Radiolocation service - Radiolocation land and mobile station
Radar
A radiodetermination system based on the comparison of reference signals with radio signals reflected from the position to be determined
Radio Direction Finding
Radiodetermination using the reception of radio waves for the purpose of determining the direction of a station or object
Radio Direction-Finding Station - A radiodetermination station using radio direction finding
Radiobeacon station
A station in the radionavigation service the emissions of which are intended to enable a mobile station to determine its bearing or direction in relation to the radiobeacon station.
Space station
A station location on an object which is beyond, is intended to go beyong, or has been beyond, the major portion of the Earth’s atmosphere
Earth station
A station located either on the Earth’s surface or withing the major portion of the Earth’s atmosphere intended for communication
Space and Terrestrial Radiocommunication
Space radiocommunication - any radiocommunication involving the use of one or more space stations or the use of one or more passive satellites or other objects in space
Terrestrial radiocommunication (terrestrial station) - any radiocommunication other than space radiocommunication or radio astronomy
Radio Astronomy
Astronomy based on the reception of radiowaves of cosmic origin
Radio astronomy service - a service involving the use of radio astronomy
Meteorological Aids Service
A radiocommunication service used for meteorological, including, hydrological, observations and exploration
Radiosonde
An automatic radio transmitter in the meteorological aids service usually carried on an aircraft, free balloon, kite or parachute, and which transmits meteorological data
Space System
Any group of co-operating earth and/or space stations employing space radiocommunication for specific purposes
Satellite System
A space system using one or more artificial earth satellites
Satellite Network
A satellite system or a part of a satellite system consisting of only one satellite and the co-operating earth stations
Satellite Link
A radio link between a transmitting earth station and a receiving earth station through one satellite. A satellite link comprises one up-path and one down-path
Multi-satellite Link
A radio link between a transmitting earth station and a receiving earth station through two or more satellites without any intermediate earth station
A multi-satellite link comprises one up-path, one or more satellite-to-satellite paths and one down-path
Fixed Satellite service
A radiocommunication service:
- between earth stations at specified fixed points when one or more satellites are used; in some cases this service includes satellite-to-satellite links, which may also be effected in the inter-satellite service;
- for connection between one or more earth stations at specified fixed points and satellites used for a service other than the fixed-satellite service
Individual and Community Reception
Individual reception - the reception of emissions from a space station in the broadcasting-satellite service by simple domestic installations and in particular those possessing small antennae
Community reception - The reception of emission from a space station in the broadcasting-satellite service by receiving equipment, which in some cases may be complex and have antennae larger than those used for individual reception, and intended for use by a group of the general public at one location; or through a distribution system covering a limited area
space research service
A radiocommunication service in which spacecraft or other objects in space are used for scientific or technological research purposes
Space Operation Service
A radiocommunication service concerned exclusively with the operation of spacecraft, in particular tracking, telemetry, and telecommand. These functions will normally be provided within the service in which the space station is operating
Inter-satellite service
A radiocommunication service providing links between artificial earth satellites
Space telemetring
The use of telemetering for the transmission from a space station of results of measurements made in a spacecraft including those relating to the functioning of the spacecraft
Space telecommand
The use of radiocommunication for the transmission of signals to a space station to initiate, modify or terminate functions of the equipment on a space object, including the space station
Space tracking
Determination of the orbit, velocity, or instantaneous position of an object in space by means of radiodetermination, excluding primary radar, for the purpose of following the movement of the object
Deep space
Space at distances from the Earth approximately equal or greater thank, the distance between the Earth and the Moon
Spacecraft
A man-made vehicle which is intended to go beyond the major portion of the Earth’s atmosphere
Satellite
A body which revolves around another body of preponderant mass and which has a motion primarily and permanently determined by the force of attraction of that other body
active satellites
An earth satellite carrying a station intended to transmit or retransmit radiocommunication signals
passive satellite
An earth satellite intended to transmit radiocommunication signals by reflection
Orbit
The path, relative to a specified frame of reference, described by the centre of mass of a satellite or other object in space, subjected solely to natural forces, mainly the force of gravity
By extension, the path described by the centre of mass of an object in space subjected to natural forces and occasional low-energy corrective forces exerted by a propulsive device in order to achieve and maintain a desired path
Inclination of an Orbit
The angle determined by the plane containing an orbit and the place of the Earth’s equator
Period
The time elapsing between two consecutive passages of a satellite or planet through a characteristic point on its orbit
Altitude of the apogee (perigee)
The altitude of the apogee (perigee) above a specified reference surface serving to represent the surface of the Earth
Geosynchronous satellite
An earth satellite whose period of revolution is equal to the period of rotation of the Earth about its axis
Geostationary satellite
A satellite, the circular orbit of which lies in the plane of the Earth’s equator and which turns about the polar axis of the Earth in the same direction and with the same period as those of the Earth’s rotation
Geostationary satellite orbit
The orbit on which a satellite should be placed to be a geostationary satellite
