Pager activation Pager technology is now used in irrigation control systems and for traffic signals. Many of today's pagers use the FLEX on-air protocol. Note that the idiomatic sound heard in popular media (movies and television programs) as "pager going off" (a series of two short beeps interrupted by a slightly longer pause) is actually the "pager power-up verification beep" sequence, perhaps because it was easier to generate that tone on demand (simply flip the power switch on). A pager is an electronic device used to contact people via a paging work. Note that the idiomatic sound heard in popular media (movies and television programs) as "pager going off" (a series of two short beeps interrupted by a slightly longer pause) is actually the "pager power-up verification beep" sequence, perhaps because it was easier to generate that tone on demand (simply flip the power switch on). Other radio bands used for pagers include the 400MHz band, the VHF band, and the FM mercial broadcast band (88-108MHz). For example, they are required to be used by UK lifeboat men and retained firefighters. On a smaller scale, pagers are sometimes carried by staff in medical establishments, allowing them to be summoned to emergencies. Even more recent models included the ability to send messages in a two-way fashion and even included the ability to send and receive email. The slower POCSAG on-air protocol is still used for some pagers in the United States and probably in other countries. Even more recent models included the ability to send messages in a two-way fashion and even included the ability to send and receive email. For example, they are required to be used by UK lifeboat men and retained firefighters. Even more recent models included the ability to send messages in a two-way fashion and even included the ability to send and receive email. Pager activation. Later pagers used digital messages, first numeric and later alphanumeric, to provide the recipient with more rmation. Early pagers only provided an audio notification, such as a series of bleeps, to indicate reception of a page. Pager activation. Pager activation
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