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Glossary of electronic communication and postal services
Glossary of electronic communication and postal services
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Radio Astronomy Service
In portuguese, Serviço de Radioastronomia (RAST). A service involving the use of radio astronomy.
19.08.2008
Latest update: 10.12.2009
Latest update: 10.12.2009
Radio communication
Transmission of sounds, images, writing or other information by radioelectric waves.
18.08.2008
Radio Determination Service
In portuguese, Serviço de Radiodeterminação (RDT). Radiocommunication service for the purpose of radio determination.
19.08.2008
Radio Regulations / Règlement des Radiocommunications
Abbreviation: RR. Radio Regulations of the International Telecommunication Union (ITU).
18.08.2008
Radiocommunication Service
A service involving the transmission, emission and/or reception of radio waves for specific telecommunication purposes.
19.08.2008
Latest update: 10.12.2009
Latest update: 10.12.2009
Radiocommunications station
One or several transmitters or receivers, or a set of transmitters or receivers, including accessory equipment, in operational state, required to provide a radiocommunications or radio-astronomy service at a given location.
08.08.2008
Latest update: 09.12.2009
Latest update: 09.12.2009
Radiodetermination
The determination of the position, velocity and/or other characteristics of an object, or the obtaining of information relating to these parameters, by means of the propagation properties of radio waves.
18.08.2008
Latest update: 10.12.2009
Latest update: 10.12.2009
Radiodetermination-Satellite Service
In portuguese, Serviço de Radiodeterminação por Satélite (RDT-S). A radiocommunication service for the purpose of radiodetermination involving the use of one or more space stations. This service may also include feeder links necessary for its own operation.
19.08.2008
Latest update: 10.12.2009
Latest update: 10.12.2009
Radioelectric Radiation
Flow of energy produced from a transmitting source in the form of radio electric waves.
18.08.2008
Radiolocation Satellite Service
In portuguese, Serviço de Radiolocalização por Satélite (RLC-S). Radio determination service by satellite for the purpose of radiolocation. This service can also include bundles necessary for its functioning.
19.08.2008
Radiolocation Service
In portuguese, Serviço de Radiolocalização (RLC). Radio determination service for the purpose of radiolocation.
19.08.2008
Radionavigation Service
In portuguese, Serviço de Radionavegação (RV). Radio determination service for the purpose of radionavigation.
19.08.2008
Radionavigation-Satellite Service
In portuguese, Serviço de Radionavegação por Satélite (RVS). A radiodetermination-satellite service used for the purpose of radionavigation. This service may also include feeder links necessary for its operation.
19.08.2008
Latest update: 10.12.2009
Latest update: 10.12.2009
RAM - Random Access Memory
Information is stored in semi-conductor chips which can be read and recorded by a microprocessor and other devices. Access to various positions of the memory does not have to follow any specific order.
18.08.2008
RDS - Radio Data System
The RDS system, whose technical specifications are set out by European standard EN 50067 of CENELEC, was developed to be applied to the radio broadcasting service on FM, stereo or mono transmissions. Its main objective is the improvement of the functionality of FM receptors and to make them more user friendly. Among other facilities, the display of the name of the programme channel (PS-Programme service) is automatically tuned by portable radios or car radios where applicable.
18.08.2008
Read Only Memory (ROM)
Chip which contains information programmed by the manufacturer, which can be read but not changed by the user.
28.10.2010
Real Time
Inexistence of any time delay (which might be perceived by the user) between the execution of a command on the part of the user and the effective reaction on the part of the application or access device used, in the course of using a determined service.
19.08.2008
Receiving provider
Company to which the subscriber switches, ''importing'' the respective numbering resources.
30.10.2008
Redundancy
Excess information which may be eliminated without disturbing the main information to be transmitted, so as to economise on transmission resources. May also describe a connection which may be establish using more than one alternative trajectory.
19.08.2008
Regulatel
Foro Latinoamericano de Entes Reguladores de Telecomunicaciones - Latin American Forum of Telecommunication Regulatory Bodies.
19.08.2008
Remote Control
System of controlling the functioning of a device from a distance using telecommunications.
06.08.2008
Repeater
Device used to strengthen the level of a digital input signal to be retransmitted which has been weakened due to the distance it has already travelled.
19.08.2008
Resolution
Level of detail which can be seen in an image on a monitor or on a printed page for example. The resolution of a television screen measures the number of horizontal lines of elements of the image and the number of pixels per line which the screen displays.
19.08.2008
Retransmission
Simultaneous transmission to one or more reception points of a signal which in turn was received from a single point of origin.
19.08.2008
Return call
Option of requesting a new call be placed to a busy number as soon as it becomes available.
08.08.2008
Return Channel
Additional resource which provides interactivity in determined communication systems with some limitations of bidirectionality. Through this channel the users can send command instructions, messages or information to the operator (for example, the telephone network can be used to provide the return channel to a cable television service or digital terrestrial television, in order to provide bidirectional services).
06.08.2008
Return link
For instantaneous communication of the director's instructions to other parties, namely presenters, interviewers, camera operators, sound operators and lighting engineers. May use several channels simultaneously to cover different activities. Usually uses constant transmissions.
18.08.2008
Right to use of telecommunications services
Everyone has the right to use public use telecommunications services, by paying the corresponding prices and tariffs, pursuant to the observation of applicable laws and regulations. With the limits imposed by their nature and purpose, the inviobility and confidentiality of telecommunications services for public use is guaranteed by law.
08.08.2008
Rigid Tube
Tube which cannot be bent, or only by the actions of mechanical means, with or without special treatment.
19.08.2008
Ring Network
Network topology in which transmission support forms a closed circuit and data circulates in only one direction.
19.08.2008
ROM - Read Only Memory
Chip which contains information programmed by the manufacturer, which can be read but not changed by the user.
18.08.2008
Router
Equipment responsible for the routing of information packets from their origin to their destination, in a packet switching network. A part of the connections between branches of the Internet network is made with this type of equipment.
19.08.2008
Routing
Establishment of a communication channel based on a choice between several available branches of a communication network.
08.08.2008
Russian Global Orbiting Navigation Satellite System (GLONASS)
Russian Global Orbiting Navigation Satellite System - Russian Satellite Radionavigation system.
28.10.2010
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Services and Useful Information
Tenders for the selection of provider(s) of universal service of electronic communications |
Consultation on the draft decision on the results of the audit to PTC's universal service net costs (2007-2009) - comments until 22.05.2013 |
ANACOM Conference 2013 - Financing the future, 01.07.2013 |
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World Radiocommunication Conference 2015 (WRC-15), Geneva, 2-27.11.2015 |
ARCTEL-CPLPhttp://www.arctel-cplp.org/ |
Positions, clarifications and statements issued by ANACOM between 2004 and 2013 |
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Access the services which we provide electronically |
FAQ on Audiotext, Digital Terrestrial Television - DTT, International Roaming, Licences for land mobile service private radiocommunications networks, Local Loop Unbundling, Message-Based value Added Services, National Numbering Plan, Operator Portability, R&TTE Regulatory Framework, Telephone Service at a Fixed Location and Universal Service, VoIP |
