Transmission control room
Encyclopedia
Transmission control room (TCR) or 'transmission suite', or 'Tx room', or "presentation" is a room at broadcast facilities and television station
Television station
A television station is a business, organisation or other such as an amateur television operator that transmits content over terrestrial television. A television transmission can be by analog television signals or, more recently, by digital television. Broadcast television systems standards are...

s around the world. Compared to a Master Control Room, it's usually smaller in size and is a scaled down version of centralcasting
Centralcasting
In terrestrial radio and television broadcasting, centralcasting refers to the use of systems automation by which customised signals for broadcast by multiple individual stations may be created at one central facility.- :...

. The TX Room or Presentation suite are staffed 24x7 by Presentation Coordinators and Tape Operators and is fitted out with video play out systems often using server based broadcast automation
Broadcast automation
Broadcast automation incorporates the use of broadcast programming technology to automate broadcasting operations. Used either at a broadcast network, radio station or a television station, it can run a facility in the absence of a human operator...

.

For operational and content qualitative reasons, not more than two television channels are managed from one TCR. Channels with live content and production switching requirements like sports channels have their own dedicated TCRs. A television station may have several TCRs depending on the number of channels they broadcast.

Presentation suite

The presentation suite is staffed 24x7 by on-air presentation coordinators who are responsible for the continuity and punctual play out of scheduled broadcast programming. Programming may be live from the television studio
Television studio
A television studio is an installation in which a video productions take place, either for the recording of live television to video tape, or for the acquisition of raw footage for post-production. The design of a studio is similar to, and derived from, movie studios, with a few amendments for the...

 or played from video tape or from video server
Video server
A video server is a computer based device dedicated to delivering video.Unlike personal computers, being multi-application devices, a video server is designed for one purpose; provisioning video, often for broadcasters. A professional grade video server records, stores, and playout of multiple...

 playout
Playout
In broadcasting, playout is a term for the transmission of radio or TV channels from the broadcaster into broadcast networks that delivers the content to the audience...

. When broadcast programming is “Live” the presentation coordinator will override the broadcast automation system and manually switch television program
Television program
A television program , also called television show, is a segment of content which is intended to be broadcast on television. It may be a one-time production or part of a periodically recurring series...

ming. The Presentation coordinator will directly coordinate live television
Live television
Live television refers to a television production broadcast in real-time, as events happen, in the present. From the early days of television until about 1958, live television was used heavily, except for filmed shows such as I Love Lucy and Gunsmoke. Video tape did not exist until 1957...

 programming going to air in consultation with Master Control and the Production Assistant (PA) or the Directors Assistant (DA). The Presentation Coordinator will arrange program source to be allocated by master Control and advise the DA as to the start time and count the production in from 10 seconds to First Frame of picture and the DA will count the production out to the television commercial break and so on it continues to the end of the program. Live Programming is unpredictable and will affect the scheduled timing of scheduled programing events; the presentation coordinator adjusts programming to bring the schedule back on time by adding or removing fill content from the play out schedule.

Common TCR equipment

  • Broadcast Control desk].
  • Broadcast automation
    Broadcast automation
    Broadcast automation incorporates the use of broadcast programming technology to automate broadcasting operations. Used either at a broadcast network, radio station or a television station, it can run a facility in the absence of a human operator...

     control computers.
  • Production switcher.
  • Talkback (recording)
    Talkback (recording)
    In sound recording, talkback refers to the intercom system used in recording studios and production control rooms in television studios to enable personnel to communicate with people in the recording area or booth...

    .
  • Broadcast quality
    Broadcast quality
    Broadcast Quality is an term stemming from quad videotape to denote the quality achieved by professional video cameras and time base correctors used for broadcast television, usually in standard definition...

     video monitor
    Video monitor
    A video monitor also called a broadcast monitor, broadcast reference monitor or just reference monitor, is a display device similar to a television set, used to monitor the output of a video-generating device, such as playout from a video server, IRD, video camera, VCR, or DVD player. It may or...

    .
  • Waveform monitor
    Waveform monitor
    A waveform monitor is a special type of oscilloscope used in television production applications. It is typically used to measure and display the level, or voltage, of a video signal with respect to time....

    .
  • SDI
    Serial Digital Interface
    Serial digital interface is a family of video interfaces standardized by SMPTE. For example, ITU-R BT.656 and SMPTE 259M define digital video interfaces used for broadcast-grade video...

     Audio de-embedder.
  • Video Play-out Automation
  • Character generator
    Character generator
    A character generator, often abbreviated as CG, is a device or software that produces static or animated text for keying into a video stream. Modern character generators are computer-based, and can generate graphics as well as text...

    (CG) Titles Generator
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