These events were usually advertisements, but could also include the station's top-of-hour station identification, news, or a bumper promoting the station or its other shows. When a scheduled event would be encountered, the computer would finish the currently-playing song and then execute the scheduled block of events. The computer would simply rotate among the tape players until the computer's internal clock matched that of a scheduled event. Subaudible tones on the tape marked the end of each song.

Music would be stored on reel-to-reel audio tape. Later systems were 'computerized' only to the point of maintaining a schedule, and were limited to radio rather than TV. Weatherscan Local became Weatherscan in 2003 but was shut down in 2022.Įarly analog systems Harris automation system used at the former WWJQ (now WPNW) in 1993Įarly automation systems were electromechanical systems which used relays. in 1999, The Weather Channel launched Weatherscan Local, a cable television channel that broadcast uninterrupted live local weather information and forecasts. In the U.S., this came about when the EAS replaced the EBS, starting the movement toward automation to assist, and sometimes take the place of, the live disc jockeys (DJs) and radio personalities. Gradually, the quality and reliability of electronic equipment improved, regulations were relaxed, and no operator had to be present (or even available) while a station was operating. president would have had to first be authenticated with a code word sealed in a pink envelope sent annually to stations by the Federal Communications Commission (FCC). While there has not been a requirement to relay any other warnings, any mandatory messages from the U.S. In the U.S., it was also necessary to have an operator on duty at all times in case the Emergency Broadcast System (EBS) was used, as this had to be triggered manually. This was often the case on overnight and weekend shifts when there was no broadcast engineer present, and all of the time for small stations with only a contract engineer on call. Originally, in the US, many (if not most) broadcast licensing authorities required a licensed board operator to run every station at all times, meaning that every DJ had to pass an exam to obtain a license to be on-air, if their duties also required them to ensure proper operation of the transmitter. The radio transmitter end of the airchain is handled by a separate automatic transmission system (ATS). They can also run in a live assist mode when there are on-air personnel present at the master control, television studio or control room.

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

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