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Digital radio is the use of digital technology to transmit or receive across the ... Tests of DRM+ has been made in countries such as in Brazil, Germany, France ...
In 2003, Pure launched the PocketDAB 1000. It was the world's first pocket digital radio. [3] Evoke Mio Sanderson [4] 2004. Pure released the Bug, the first-ever digital radio with EPG, pause, rewind and record. [3] 2005. Sonus-1XT was launched by Pure and became the world's first digital radio for the blind and visually impaired. [3] 2007
Digital multimedia broadcasting (DMB) and DAB-IP are both suitable for mobile radio and TV because they support MPEG 4 AVC and WMV9 respectively as video codecs. However, a DMB video subchannel can easily be added to any DAB transmission, as it was designed to be carried on a DAB subchannel.
Several hand-held Project 25 radios used around the world. Project 25 (P25 or APCO-25) is a suite of standards for interoperable digital two-way radio products. P25 was developed by public safety professionals in North America and has gained acceptance for public safety, security, public service, and commercial applications worldwide. [1]
2001: Kenwood releases its first digital transceiver operating on P25. 2002: Develops a network interface module (NIM) for digital broadcasts via a communications satellite (CS). 2005: Forms a technical and capital alliance with Icom to jointly research the standardisation of technical specifications for digital wireless radio equipment (NXDN).
The early history of radio is the history of technology that produces and uses radio instruments that use radio waves. Within the timeline of radio, many people contributed theory and inventions in what became radio. Radio development began as "wireless telegraphy". Later radio history increasingly involves matters of broadcasting.