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It would only sound when a correct pair of tones were broadcast - allowing many agencies (with different tones) to share the same frequency. Some Plectron Models had a set of "Built-in Re-chargeable Batteries", making the Plectron Portable. The Motorola MINITOR pager also uses this function and has largely replaced the Plectron.
Thus, Motorola answered this call in the 1970s and released the very first Minitor pager. There are six versions of Minitor pagers. The first was the original Minitor, followed by the Minitor II(1992), Minitor III(1999), Minitor IV, and the Minitor V released in late 2005. The Minitor VI was released in early 2014.
The abbreviation is not always a short form of the word used in the clue. For example: "Knight" for N (the symbol used in chess notation) Taking this one stage further, the clue word can hint at the word or words to be abbreviated rather than giving the word itself. For example: "About" for C or CA (for "circa"), or RE.
Tayside children's sleep questionnaire: A ten-item questionnaire for sleep disorders in children aged between one and five years old. [7] [8] [9] Children's Sleep Habits Questionnaire. [10] Cleveland Adolescent Sleepiness Questionnaire (CASQ): There are 16 items to measure extreme sleepiness during the day in adolescents aged 11–17 years old ...
A pager, also known as a beeper or bleeper, [1] is a wireless telecommunications device that receives and displays alphanumeric or voice messages. One-way pagers can only receive messages, while response pagers and two-way pagers can also acknowledge, reply to, and originate messages using an internal transmitter.
The information includes sleep onset time, sleep latency, number of awakenings in a night, time in bed, daytime napping, sleep quality assessment, use of hypnotic agents, use of alcohol and cigarettes, and unusual events which may influence a person's sleep. Such a log is usually made for one or two weeks before visiting a somnologist.
The PPM is worn like a pager and detects hidden audio tones within a station or network's audio stream, logging each time it finds a signal. There are several parts to the PPM system: An encoder that inserts the tones subliminally into a station's or broadcast network 's airchain via psychoacoustic masking .
This can be used to identify and differentiate between various sleep problems. The test consists of four or five 20-minute nap opportunities set two hours apart, often following an overnight sleep study. During the test, data such as the patient's brain waves, EEG, muscle activity, and eye movements are monitored and recorded. The entire test ...