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mobile digital radio communications

См. также в других словарях:

  • Digital radio — has several meanings: 1. Today the most common meaning is digital radio broadcasting technologies, such as the digital audio broadcasting (DAB) system, also known as Eureka 147. In these systems, the analog audio signal is digitized into zeros… …   Wikipedia

  • Digital Radio Mondiale — (abbreviated DRM; mondiale being Italian and French for worldwide ) is a set of digital audio broadcasting technologies designed to work over the bands currently used for AM broadcasting, particularly shortwave. DRM can fit more channels than AM …   Wikipedia

  • Digital radio in the United Kingdom — A typical DAB digital radio receiver with the Digital Radio Development Bureau DAB digital radio marketing logo In the United Kingdom, the roll out of digital radio is proceeding since test transmissions were started by the BBC in 1990. The UK… …   Wikipedia

  • Amateur Radio Communications Team — The Amateur Radio Communications Team (ARCT) is a proposed system for classifying the capabilities of teams of volunteer amateur radio operators, in preparation for or in actual service in support of public service agencies (fire, police, other… …   Wikipedia

  • Maritime mobile amateur radio — An emergency portable boat radio transceiver, Museal ship S/S Sołdek in Gdańsk, Poland Most countries amateur radio licences allow licensed operators to install and use radio transmission equipment while at sea. Such operation is known as… …   Wikipedia

  • Mobile television — DMB in South Korea Mobile television usually means television watched on a small handheld device. It may be a pay TV service broadcast on mobile phone networks or received free to air via terrestrial television stations from either regular… …   Wikipedia

  • Radio — is the transmission of signals, by modulation of electromagnetic waves with frequencies below those of visible light.Electromagnetic radiation travels by means of oscillating electromagnetic fields that pass through the air and the vacuum of… …   Wikipedia

  • Mobile telephony — Mobile phone tower Mobile telephony is the provision of telephone services to phones which may move around freely rather than stay fixed in one location. Mobile phones connect to a terrestrial cellular network of base stations (cell sites),… …   Wikipedia

  • Communications in Australia — is dominated by the telecommunications provider, Telstra. Other telephone carriers include Optus (owned by Singapore Telecommunications), AAPT and Powertel (both owned by Telecom New Zealand), Soul (SP Telemedia), Vodafone and Hutchison 3G (3… …   Wikipedia

  • Digital terrestrial television in the United Kingdom — encompasses over 100 television, radio and interactive services broadcast via the UK s terrestrial television network and receivable with a standard television aerial. The majority of services, including those from the existing five analogue… …   Wikipedia

  • Digital mobile radio — (DMR) is an open digital radio standard for professional mobile radio (PMR) users specified in the European Telecommunications Standards Institute (ETSI) Standards TS 102 361 parts 1 to 4 and used in products sold in all regions of the world. The …   Wikipedia

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