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Definition of Relay Broadcast

According to the Broadcasting Act, ‘broadcasting refers to the transmission of radio communications performed by a broadcasting station for the purpose of disseminating news comments and public opinion, culture, music, entertainment, entertainment, etc. on politics, economy, society, culture, current affairs, etc. to the public.’ It is defined as ‘Broadcasting station’ refers to a radio station that receives permission according to the Radio Wave Management Act and performs broadcasting.

 If the broadcasting station defined in the 스포츠중계 Act has the character of a fixed station, relay broadcasting means recording, recording, or producing programs of various genres mentioned in the Broadcasting Act in a place other than the broadcasting station using a mobile relay vehicle, or M/W, SNG, O It can be said to be a kind of mobile station that broadcasts through transmission means such as /F. Broadcast production requires skills and know-how in various areas other than the broadcasting area. In particular, the understanding of the transmission network and the role of coordination in the relay field are emphasized. Since it is a live broadcast job, it is necessary to respond quickly and take action when a problem occurs.

Types of relay broadcasting

Live Broadcasting

As the PGM (program) of the relay site is live ON-AIR, it is performed in news that emphasizes speed or PGM (SPORTS, commemorative ceremonies and shows of various events, etc.) In case of live broadcasting, it is necessary to establish a spare transmission line and secure a spare power source (generator, KEPCO) when configuring the transmission line (M/W, SNG, O/F, etc.). 

Recorded relay broadcast

There are two methods of recording using the VCR of the recording site relay vehicle or recording in the TV playing area using transmission means such as M/W. In this case, it is necessary to prevent recording accidents in advance by running VCRs in parallel and configuring a spare transmission path.

Outdoor relay broadcasting

It is an outdoor broadcast, and depending on the PGM, a lot of equipment is mobilized. Since natural light is the lighting condition from the outside, it is necessary to reproduce the image in consideration of the change of the sun and the direction of sunlight, and additionally illuminate it if necessary. For sound, use W/L MIC or MIC with WINDSCREEN in consideration of the distance of the sound source, ambient noise or wind direction. Be sure to prepare a thermal cover, air conditioner, and waterproof cover for rain or cold weather.

Indoor Relay Broadcasting

This is a broadcast conducted indoors, such as in a gymnasium or auditorium, and the production conditions such as the internal structure should be surveyed in advance to prepare the broadcasting equipment in consideration of lighting and soundproofing measures (HOWLING). In case of indoor broadcasting, an appropriate amount of lighting should be reinforced in consideration of the already installed lighting fixtures (mercury lamps, fluorescent lamps).

 Domestic (DOMESTIC) relay broadcasting and international (INTERNATIONAL) relay broadcasting

International broadcasting is mainly for SPORTS broadcasting signal production, different from domestic broadcasting, image signal is processed in CLEAN VIDEO or subtitles in international language (mainly in English), and sound is processed by ANNOUNCER or It refers to a broadcast produced with IS (INTERNATIONAL SOUND: mainly on-site effects) without commentary. 

Special relay broadcasting

Special relay means relay under special conditions or environment, not general relay using a relay vehicle. For example, on land, there are marathons, various elections, national sports, Asian Games, Olympic Games, overseas local relay broadcasting using satellites, live broadcasting of South and North Korea, and special situation shooting using advanced equipment such as surgery scenes. There are relays in submarines, studios, or ships, and relays in the sky using HEL aircraft, airships, and hot air balloons.

For this special relay, it is necessary to first understand the characteristics of the equipment to be used, as well as always consider the weather conditions and unexpected variables. Planning and pre-examination during a special broadcast are very important. In particular, during pre-examination, all conditions should be set identically to the actual situation, and thorough preparations should be made in consideration of all possible situations. Special broadcasting in areas previously thought impossible became possible with the introduction of advanced equipment, reinforcement of new viewer services, and accumulation of broadcasting technology. However, in order to successfully carry out such a special broadcast, thorough planning and careful preparation must go through.

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