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Outside broadcasting (OB) is the electronic field production (EFP) of television or radio programmes (typically to cover television news and sports television events) from a mobile remote broadcast television studio.
Dumont Telecruiser, an early production truck developed by the US DuMont Television Network in 1949 Television South (TVS) OB Unit 1, a Bedford VAL in 1991. One of the BBC's early Outside Broadcast vehicles, MCR 1 (short for Mobile Control Room), was built by the joint Marconi-EMI company and delivered to the BBC just in time to televise the Coronation of George VI and Elizabeth in May 1937. [4]
The Broadcast Engineering Conservation Group (BECG) conserves historic broadcasting equipment. It is based at Hemswell Cliff in Lincolnshire, England and is a Charitable incorporated organisation. [1] [2] The group was founded by people with large private collections of broadcasting equipment, including several Outside Broadcast (OB) vehicles.
The cost of personnel and equipment is usually paid for by the host at each performance. However, if the event is recurring, such as a weekly broadcast from a nightclub, then dedicated lines are usually installed by the local telephone company in order to save on costs. With low range radio stations, and at events with no telephone lines ...
Link was known mainly for its range of broadcast television cameras, but was also a manufacturer of outside broadcast (OB) vehicles, including the BBC "Type 5". Link also produced a wide range of ancillary studio equipment, such as distribution amplifiers, measuring sets and test-signal generators. [2]
Sports television is one facet of EFP. Major television networks once owned their own production trucks for covering major events, but today, with the explosion in networks on cable and over-the-air, they rent television production trucks by the day or week from broadcast rental companies for more routine or remote broadcast productions.
Broadcast cameras typically carry several signals over the camera cable in addition to the camera output itself. Typically, RGB signals are transmitted over the camera cable. The CCU will usually convert these to SDI, YUV or composite for interfacing to other video equipment - typically it will be connected to a vision mixer via a video router.
The term ENG was created as television news departments moved from film-based news gathering to electronic field production technology in the 1970s. Since film requires chemical processing before it can be viewed and edited, it generally took at least an hour from the time the film arrived back at the television station or network news department until it was ready to be broadcast. [2]