Astra Digital Radio

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Astra Digital Radio

Astra Digital Radio (ADR) was a system used by SES for digital radio transmissions on the early Astra satellites, using the audio subcarrier frequencies of analogue television channels. It was introduced in 1995. As of February 2008, there were still 51 stations transmitting in this format. ADR ceased on 30 April 2012 when analogue broadcasts on Astra 19.2°E ended.

SES S.A. communications satellite owner and operator

SES S.A. is a communications satellite owner and operator providing video and data connectivity worldwide to broadcasters, content and internet service providers, mobile and fixed network operators, governments and institutions, with a mission to "connect, enable, and enrich".

Digital radio is the use of digital technology to transmit or receive across the radio spectrum. Digital transmission by radio waves includes digital broadcasting, and especially digital audio radio services.

Astra 19.2°E

Astra 19.2°E is the name for the group of Astra communications satellites co-located at the 19.2°East orbital position in the Clarke Belt that are owned and operated by SES based in Betzdorf, Luxembourg.

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The format used one mono audio subcarrier, which was normally allocated to an additional audio track or radio station, or one channel of a stereo audio track/station. The carrier was digitally modulated and carried a 192 kbit/s, 48 kHz sampled MPEG-1 Layer II (MP2) encoded signal. 9.6 kbit/s was available for data.

Special receivers were required to listen to ADR stations, although some combined analogue/digital satellite boxes and later standard analogue boxes were equipped to decode it.

ADR was succeeded by DVB-S, with which it is incompatible, despite both being transmitted using MP2 and generally at the same bitrates. As a result, when the final analogue switch-off on the Astra 1 satellites occurred, ADR became obsolete.

Digital Video Broadcasting – Satellite (DVB-S) is the original DVB standard for Satellite Television and dates from 1995, in its first release, while development lasted from 1993 to 1997. The first commercial application was by Galaxy in Australia, enabling digitally broadcast, satellite-delivered Television to the public.

The majority of the channels to have been broadcast using ADR were in the German language.[ citation needed ] In some ways,[ which? ] the system is seen[ by whom? ] to have replaced the Digitales Satellitenradio system, dating from the 1980s, which used an entire satellite transponder to carry 16 NICAM [1] encoded radio stations, and which closed in 1999.

German language West Germanic language

German is a West Germanic language that is mainly spoken in Central Europe. It is the most widely spoken and official or co-official language in Germany, Austria, Switzerland, South Tyrol in Italy, the German-speaking Community of Belgium and Liechtenstein. It is one of the three official languages of Luxembourg and a co-official language in the Opole Voivodeship in Poland. The languages that are most similar to the German are the other members of the West Germanic language branch, including Afrikaans, Dutch, English, the Frisian languages, Low German/Low Saxon, Luxembourgish, and Yiddish. There are strong similarities in vocabulary with Danish, Norwegian and Swedish, although those belong to the North Germanic group. German is the second most widely spoken Germanic language, after English.

Near Instantaneous Companded Audio Multiplex (NICAM) is an early form of lossy compression for digital audio. It was originally developed in the early 1970s for point-to-point links within broadcasting networks. In the 1980s, broadcasters began to use NICAM compression for transmissions of stereo TV sound to the public.

Channel Listing

Deutschlandfunk, abbreviated DLF, is a German public broadcasting radio station, broadcasting national news and current affairs.

Bayerischer Rundfunk public-service radio and television broadcaster based in Munich

Bayerischer Rundfunk is a public-service radio and television broadcaster, based in Munich, capital city of the Free State of Bavaria in Germany. BR is a member organization of the ARD consortium of public broadcasters in Germany.

Bayern 1 Radio program of the Bayerischer Rundfunk

Bayern 1 is a German, public radio station owned and operated by the Bayerischer Rundfunk (BR).

Related Research Articles

A subcarrier is a sideband of a radio frequency carrier wave, which is modulated to send additional information. Examples include the provision of colour in a black and white television system or the provision of stereo in a monophonic radio broadcast. There is no physical difference between a carrier and a subcarrier; the "sub" implies that it has been derived from a carrier, which has been amplitude modulated by a steady signal and has a constant frequency relation to it.

ARD is a joint organisation of Germany's regional public-service broadcasters. It was founded in 1950 in West Germany to represent the common interests of the new, decentralised, post-war broadcasting services – in particular the introduction of a joint television network.

Das Erste is the flagship national television channel of the ARD association of public broadcasting corporations in Germany. ARD and ZDF – "the Second" German Television Channel – together comprise the public service television broadcasters in the German television system. Das Erste is jointly operated by the nine regional public broadcasting corporations that are members of the ARD.

Westdeutscher Rundfunk Köln is a German public-broadcasting institution based in the Federal State of North Rhine-Westphalia with its main office in Cologne. WDR is a constituent member of the consortium of German public-broadcasting institutions, ARD. As well as contributing to the output of the national television channel Das Erste, WDR produces the regional television service WDR Fernsehen and six regional radio networks.

Sputnik or MDR Sputnik is a youth-oriented German radio station, and is part of Leipzig-based public broadcaster MDR with its seat in Halle. The station, which plays primarily the typical variety of pop and rock music, is the successor to the East German youth station DT64, founded in 1964. It was given its present name on May 1, 1993, following German reunification in 1990; the new name, inspired by the Soviet Sputnik satellite, was the suggestion of Saxon prime minister Kurt Biedenkopf.

Television in Germany began in Berlin on 22 March 1935, broadcasting for 90 minutes three times a week. It was the first public television station in the world, named Fernsehsender Paul Nipkow. The German television market had approximately 36.5 million television households in 2000, making it the largest television market in Europe. Nowadays, 95% of German households have at least one television receiver. All the main German TV channels are free-to-air.

Norddeutscher Rundfunk Public service broadcaster in Northern Germany

Norddeutscher Rundfunk is a public radio and television broadcaster, based in Hamburg. In addition to the city-state of Hamburg, NDR transmits for the German states of Lower Saxony, Mecklenburg-Vorpommern and Schleswig-Holstein. NDR is a member of the ARD consortium.

A radio orchestra is an orchestra employed by a radio network in order to provide programming as well as sometimes perform incidental or theme music for various shows on the network. In the heyday of radio such orchestras were numerous, performing classical, popular, light music and jazz. However, in recent decades, broadcast orchestras have become increasingly rare. Those that still exist perform mainly classical and contemporary orchestral music, though broadcast light music orchestras, jazz orchestras and big bands are still employed by some radio stations in Europe.

Hörspielpreis der Kriegsblinden renowned German literary award for audio play productions in German language

The Hörspielpreis der Kriegsblinden, also known as the Kriegsblindenpreis is the most important literary prize granted to playwrights of audio plays written in the German language. The award was established in 1950 by the Bund der Kriegsblinden Deutschlands e.V. (BKD), a German organization for soldiers and civilians blinded during war, whether from working with munitions or explosives or from a bomb attack or while in flight from an attack.

CCIR System I is an analog broadcast television system. It was first used in the Republic of Ireland starting in 1962 as the 625-line broadcasting standard to be used on VHF Band I and Band III, sharing Band III with 405-line System A signals radiated in the north of the country. The UK started its own 625-line television service in 1964 also using System I, but on UHF only - the UK has never used VHF for 625-line television except for some cable relay distribution systems.

The Axel-Springer-Preis is an annually awarded prize. The Award is given to young journalists in the categories Print Journalism, TV Journalism, Radio Journalism and Online Journalism due to the decisions of the Axel-Springer-Akademie.

Antje Vowinckel is a Berlin-based German sound artist, radio artist, and musician.

B5 aktuell radio station

B5 aktuell is a German, public radio station owned and operated by the Bayerischer Rundfunk (BR).

References

  1. Patent DE4234015A1 explicitly mentions DSR as an example for NICAM audio