Simulcast

Simulcast [ sɪmjʊl ˌ kɑ ː st ] (from English simultaneous, simultaneously ' and broadcast, send ') stands for a simulcast of the same content across multiple radio paths.

Thus, for example, the same program of ARD terrestrial digital broadcast via antenna and the satellite. In addition, digital and analog transmissions come in many cable networks and the Internet as a stream. In this case, the result differs only by a slight delay as in transmission via satellite a longer path has to be covered (about ¼ second) and the digital television even a (sometimes even longer ) time for converting the digital television signal into the TV picture is added.

The digitization of the television program, the air content is already ceased analog channels ( see the " TV Everywhere " DVB -T). The analog satellite broadcasting has been set on 30 April 2012. The analogous quality in all ways remained almost the same and never exceeded the values ​​specified in PAL. Only with HDTV that changed, since a channel is broadcast in high-definition format.

Previously, there was also simulcast broadcasts transmission of the same program on television and radio. VCR with " simulcast " switch could then record the TV parallel to the image ( better ) sound, which was broadcast on FM radio on the hi-fi soundtracks.

The term is used also simulcast on the radio. For example, can be heard in many parts of Germany, both on FM, medium wave and long wave as well as on digital radio DAB radio of Germany.

HD simulcast

The term HD simulcast is used for parallel broadcasting of a television program in different quality level, ie HDTV and SDTV. This grant broadcasters, provided that the viewer no HD reception possibility should be provided that the program can be received in the audience with their existing to date equipment.