1Fixed service
A radiocommunication service between specified fixed points.
2Fixed station
A station in the fixed service.
3Fixed-satellite service
A radiocommunication service between earth stations at given positions, when one or more satellites are used; in some cases, this service includes satellite-to-satellite links, which may also be operated in the inter-satellite service. The fixed-satellite service may also include feeder links for other space radiocommunication services.
4Earth station
A station located either on the Earth’s surface or within the major portion of the Earth’s atmosphere and intended for communication:
- with one or more space stations46, or
- with one or more stations of the same kind, by means of one or more reflecting satellites or other objects in space.
5Satellite news gathering (SNG) earth station
An earth station providing broadcasting auxiliary services of an occasional nature within the scope of Satellite News Gathering services, ensuring links between the news reporting location and the studio, operating in frequency bands allocated to the fixed- satellite service.
6Aeronautical mobile service
A mobile service between aeronautical stations7 and aircraft stations47 or between aircraft stations, in which survival craft stations48 may participate.
7Aeronautical station
A land station49 in the aeronautical mobile service.
8Networks underpinning the operation of surface applications
Networks including wireless data transmission systems, operating at airports, intended for the establishment of airport communications. These systems, the terminals of which are located within the airport area (surface applications), were designed to provide high data transmission rate over short distances.
9Maritime mobile service
A mobile service between coast stations and ship stations50, or between ship stations, or between associated on-board communication stations.
10Coast station
A land station in the maritime mobile service.
11Mobile-satellite service
A radiocommunication service:
- between mobile earth stations51 and one or more space stations, or between space stations used by this service; or
- between mobile earth stations, by means of one or more space stations.
This service may also include feeder links required for its operation.
12Complementary ground component (CGC station)
A ground station of a mobile-satellite system52 used at fixed locations, in order to improve the availability of mobile satellite systems in geographical areas within the footprint of the system’s satellite(s), where communications with one or more space stations cannot be ensured with the required quality.
13Port operations service
A maritime mobile service in or near a port, between coast stations and ship stations, or between ship stations, in which messages are restricted to those relating to the operational handling, the movement and the safety of ships and, in emergency, to the safety of persons.
14Port stations
A coast station in the port operations service.
15Broadcasting service
A radiocommunication 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.
16Analogue radio broadcasting station
A radio broadcasting or relay station53 using analogue technology, and operating in frequency bands allocated to the broadcasting service.
17Digital radio broadcasting station
A radio broadcasting or relay station using DRM (Digital Radio Mondiale) system specifications, and operating in frequency bands below 174 MHz which are allocated to the broadcasting service.
18Radiodetermination service
A radiocommunication service for the purpose of the determination of the position, velocity or other characteristics of an object, or the obtaining of information relating to these parameters, by means of the propagation properties of radio waves.
19Land radiodetermination station
A station in the radiodetermination service.
20Radiodetermination-satellite service
A radiocommunication service for the purpose of radiodetermination involving the use of one or more space stations.
21Radiodetermination-satellite station
A station in the radiodetermination-satellite service.
22Meteorological-satellite service
An earth exploration-satellite service26 for meteorological purposes.
23Meteorological aids service
A radiocommunication service used for meteorological, including hydrological, observations and exploration.
24Meteorological aids station
A station in the meteorological aids service.
25Space operation service
A radiocommunication service concerned exclusively with the operation of spacecraft, in particular space tracking54, space telemetry55, and space telecommand56.
26Earth exploration-satellite service
A radiocommunication service between earth stations and one or more space stations, which may include links between space stations, and in which:
- information relating to the characteristics of the Earth and its natural phenomena is obtained from active sensors57 or passive sensors58 on Earth satellites59;
- similar information is collected from airborne or Earth-based platforms.
27Radio astronomy service
A service involving the use of radio astronomy.
28Radio astronomy station
A station in the radio astronomy service.
29Electronic communications service
A service provided as a rule for remuneration, which consists wholly or mainly in the conveyance of signals on electronic communications networks30, including telecommunications services and transmission services in networks used for broadcasting, without prejudice to the exclusion referred in points a) and b) of paragraph 1 of article 2 of Law No. 5/2004, of 10 February as amended by Law No. 51/2011, of 13 September.
30Electronic communications network
Transmission systems and, where applicable, switching or routing equipment and other resources, namely network elements which are not active, which permit the conveyance of signals by wire, radio, optical or other electromagnetic means, including satellite networks, fixed (circuit and packet-switched, including Internet) and mobile terrestrial networks, electricity cable systems, to the extent that they are used for the purpose of transmitting signals, networks used for radio and television broadcasting, and cable television networks, irrespective of the type of information conveyed.
31Effective radiated power (e.r.p.)
The product of the power supplied to the antenna and its gain relative to a half-wave dipole in a given direction.
32Land Mobile Service
A mobile service between base stations60 and land mobile stations61, or between land mobile stations.
33Digital trunked network
A trunking network in the land mobile service62 using digital technology, which includes base stations and land mobile stations operating in frequency bands allocated for the purpose.
34Railway communications networks (GSM-R)
A network in the land mobile service with GSM-RTP technology, underpinning railway communications, which includes base stations and land mobile stations operating in frequency bands allocated for the purpose.
35Privative network in the land mobile service
A network in the land mobile service intended to underpin privative telecommunications services. It may include fixed stations operating in frequencies in the scope of the fixed service or of the land mobile service for command and/or interconnection with base stations.
36Broadcast auxiliary service (program making and special events)
Radio applications used to support the production of broadcasting programmes or special events such as conferences, culture events, educational events, sport events, or film production, and which namely include microphone emitters, in-ear monitors, wireless video cameras and video, audio and data links.
37Point-to-point link network
A network including fixed stations that ensure unidirectional or bidirectional point-to-point radio links, operating in frequency bands allocated to the fixed service.
38Point-to-multipoint link network
A network including central stations and terminal stations that ensure unidirectional or bidirectional point-to-multipoint radio links, operating in frequency bands allocated to the fixed service.
39Studio-transmitter link networks
Point-to-point unidirectional radio link established between a fixed station close to the studio and another fixed station close to the respective transmitter broadcasting station, operating in frequency bands allocated to the fixed service.
40Occasionally-used beams
A network including fixed stations that ensure occasionally-used point-to-point or point-to-multipoint radio links, either unidirectional or bidirectional, operating in frequency bands allocated to the fixed service.
41Equivalent isotropically radiated power (e.i.r.p.)
The product of the power supplied to the antenna and the antenna gain in a given direction relative to an isotropic antenna (isotropic or absolute gain).
42VSAT earth station network
A network including earth stations with a low-diameter satellite dish (Very Small Aperture Terminal), operating in frequency bands allocated to the fixed-satellite service.
43Digital terrestrial radio broadcasting network
A network including radio broadcasting or relay stations using digital technology, operating in frequency bands allocated to the broadcasting service.
44Digital terrestrial television broadcasting service
A network consisting of television broadcasting or relay stations using digital technology, operating in frequency bands allocated to the broadcasting service.
45Fixed shortwave station
A fixed station that ensures point-to-point or point-to-multipoint radio links, operating in frequency bands allocated to the fixed service, in the range between 3 MHz and 30 MHz.
46Space station
A station located on an object which is beyond, is intended to go beyond, or has been beyond, the major portion of the Earth’s atmosphere.
47Aircraft station
A mobile station in the aeronautical mobile service located on board an aircraft, other than a survival craft station.
48Survival craft station
A mobile station in the maritime mobile service or the aeronautical mobile service intended solely for survival purposes and located on any lifeboat, life-raft or other survival equipment.
49Land station
A station in the mobile service not intended to be used while in motion.
50Ship station
A mobile station in the maritime mobile service located on board a vessel which is not permanently moored, other than a survival craft station.
51Mobile earth station
An earth station in the mobile-satellite service intended to be used while in motion or during halts at unspecified points.
52Mobile-satellite system
Electronic communications networks and associated resources able to provide radiocommunication services between a mobile earth station and one or more space stations, or between mobile earth stations by means of one or more space stations, or between a mobile earth station and one or more complementary ground based station used at fixed locations. This system must include, at least, one space station.
53Radio broadcasting station
A station in the broadcasting service.
54Space 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.
55Space telemetry
The use of telemetry for the transmission from a space station of results of measurements made in a spacecraft63, including those relating to the functioning of spacecraft.
56Space telecommand
The use of radiocommunication for the transmission of signals to a space station to initiate, modify or terminate functions of equipment on an associated space object, including the space station.
57Active sensor
A measuring tool used in the Earth exploration-satellite service or in the space research service64, by means of which information is obtained through the transmission and reception of radio waves.
58Passive sensor
A measuring tool used in the Earth exploration-satellite service or in the space research service, by means of which information is obtained through the reception of radio waves of a natural source.
59Satellite
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.
60Base station
A land station in the land mobile service.
61Land mobile station
A mobile station in the land mobile service capable of surface movement within the geographical limits of a country or continent.
62Land mobile service network
A network including base stations and/or land mobile stations, operating in frequency bands allocated to the land mobile service.
63Spacecraft
A man-made vehicle which is intended to go beyond the major portion of the Earth’s atmosphere.
64Space research service
A radiocommunication service in which spacecraft or other objects in space are used for scientific or technological research purposes.
