Digital television glossary

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Show Glossary Notes

SFN - Single Frequency Network

Broadcast network where several transmitters simultaneously send the same signal over the same frequency channel. In Mainland Portugal, e.g., the digital terrestrial television is transmitted in UHF channel 67.
06.04.2009

Simulcast

Period during which broadcasts of analogue terrestrial television and digital terrestrial television coexist.
06.04.2009

Smart Card

A card, generally in plastic, which is inserted into a slot in a set-top-box or a television receiver and unencrypts conditional access digital signals, allowing them to be received.
06.04.2009

Standard-definition television

Abbreviation: SDTV. The standard image quality in digital television, associated to a similar resolution as analogue PAL systems, which provides the user with a better quality, given that digital television prevents ghosting and other analogue broadcasting problems.
06.04.2009

STB - Set-Top-Box

Device that connects to a television, via SCART or HDMI cable, and whose main function is to decode an external digital television signal, so that contents (television programs, interactive services) may be displayed on the television screen. The STB may also have decryption functions, where it is associated to conditional access televisions services.
06.04.2009

Switch-Off (of the terrestrial analogue system)

Termination of terrestrial analogue television broadcasting. From 26 April 2012, the terrestrial television service has no longer been available via analogue, and has been available through digital only.
06.04.2009

Switchover

All the process involved in the transition from the existing analogue terrestrial television system to the digital terrestrial system.
06.04.2009

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Services and Useful Information
Universal Service
Universal Service

Tenders for the selection of provider(s) of universal service of electronic communications
ANACOM public consultations

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 Events

ANACOM Conference 2013 - Financing the future, 01.07.2013
World Radiocommunication Conference 2015 (WRC-15)

World Radiocommunication Conference 2015 (WRC-15), Geneva, 2-27.11.2015
Association of CPLP Communications and Telecommunications Regulators
ARCTEL-CPLP

ARCTEL-CPLPhttp://www.arctel-cplp.org/
Statements/clarifications

Positions, clarifications and statements issued by ANACOM between 2004 and 2013
Forms for electronic and interactive services

Access the services which we provide electronically
Frequently asked questions

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