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33 relations: Alternating current, Atomic clock, Clock, Code-division multiple access, Coordinated Universal Time, Global Positioning System, Grandfather clock, Greenwich Time Signal, Master clock, Master control, Modem, National Emergency Number Association, Network Time Protocol, Pendulum clock, Pulse-per-second signal, Punched tape, Radio clock, Radio frequency, Royal Observatory, Greenwich, RS-232, Shepherd Gate Clock, Slave clock, Society of Motion Picture and Television Engineers, Television, Television producer, The Great Exhibition, Time clock, Timer, Timestamp, Turret clock, United States, WWV (radio station), WWVH.
Alternating current
Alternating current (AC) is an electric current which periodically reverses direction, in contrast to direct current (DC) which flows only in one direction.
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Atomic clock
An atomic clock is a clock device that uses an electron transition frequency in the microwave, optical, or ultraviolet region of the electromagnetic spectrum of atoms as a frequency standard for its timekeeping element.
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Clock
A clock is an instrument to measure, keep, and indicate time.
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Code-division multiple access
Code-division multiple access (CDMA) is a channel access method used by various radio communication technologies.
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Coordinated Universal Time
No description.
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Global Positioning System
The Global Positioning System (GPS), originally Navstar GPS, is a satellite-based radionavigation system owned by the United States government and operated by the United States Air Force.
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Grandfather clock
A grandfather clock (also a longcase clock, tall-case clock, or floor clock) is a tall, freestanding, weight-driven pendulum clock with the pendulum held inside the tower or waist of the case.
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Greenwich Time Signal
The Greenwich Time Signal (GTS), popularly known as the pips, is a series of six short tones broadcast at one-second intervals by many BBC Radio stations.
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Master clock
A master clock is a precision clock that provides timing signals to synchronise slave clocks as part of a clock network.
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Master control
Master control is the technical hub of a broadcast operation common among most over-the-air television stations and television networks.
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Modem
A modem (modulator–demodulator) is a network hardware device that modulates one or more carrier wave signals to encode digital information for transmission and demodulates signals to decode the transmitted information.
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National Emergency Number Association
The National Emergency Number Association (NENA) is an organization whose mission it is to foster the technological advancement, availability, and implementation of a universal emergency telephone number system in the United States.
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Network Time Protocol
Network Time Protocol (NTP) is a networking protocol for clock synchronization between computer systems over packet-switched, variable-latency data networks.
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Pendulum clock
A pendulum clock is a clock that uses a pendulum, a swinging weight, as its timekeeping element.
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Pulse-per-second signal
A pulse per second (PPS or 1PPS) is an electrical signal that has a width of less than one second and a sharply rising or abruptly falling edge that accurately repeats once per second.
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Punched tape
Punched tape or perforated paper tape is a form of data storage, consisting of a long strip of paper in which holes are punched to store data.
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Radio clock
A radio clock or radio-controlled clock (RCC) is a clock that is automatically synchronized by a time code transmitted by a radio transmitter connected to a time standard such as an atomic clock.
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Radio frequency
Radio frequency (RF) refers to oscillatory change in voltage or current in a circuit, waveguide or transmission line in the range extending from around twenty thousand times per second to around three hundred billion times per second, roughly between the upper limit of audio and the lower limit of infrared.
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Royal Observatory, Greenwich
The Royal Observatory, Greenwich (ROG; known as the Old Royal Observatory from 1957 to 1998, when the working Royal Greenwich Observatory, RGO, moved from Greenwich to Herstmonceux) is an observatory situated on a hill in Greenwich Park, overlooking the River Thames.
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RS-232
In telecommunications, RS-232, Recommended Standard 232 is a standard introduced in 1960 for serial communication transmission of data.
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Shepherd Gate Clock
The Shepherd Gate Clock is mounted on the wall outside the gate of the Royal Greenwich Observatory building in Greenwich, Greater London.
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Slave clock
In telecommunication and horology, a slave clock is a clock that depends for its accuracy on another clock, a master clock.
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Society of Motion Picture and Television Engineers
The Society of Motion Picture and Television Engineers (SMPTE) (rarely), founded in 1916 as the Society of Motion Picture Engineers or SMPE, is a global professional association, of engineers, technologists, and executives working in the media and entertainment industry.
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Television
Television (TV) is a telecommunication medium used for transmitting moving images in monochrome (black and white), or in colour, and in two or three dimensions and sound.
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Television producer
A television producer is a person who oversees all aspects of video production on a television program.
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The Great Exhibition
The Great Exhibition of the Works of Industry of All Nations or The Great Exhibition, sometimes referred to as the Crystal Palace Exhibition in reference to the temporary structure in which it was held, was an international exhibition that took place in Hyde Park, London, from 1 May to 15 October 1851.
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Time clock
A time clock, sometimes known as a clock card machine or punch clock or time recorder, is a recording clock used at places of business to record the hours worked by employees.
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Timer
A timer is a specialized type of clock used for measuring specific time intervals.
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Timestamp
A timestamp is a sequence of characters or encoded information identifying when a certain event occurred, usually giving date and time of day, sometimes accurate to a small fraction of a second.
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Turret clock
A turret clock or a public clock is a clock that is larger than a domestic clock and has a mechanism designed to drive a visual time indicator such as dials and or bells as a public amenity.
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United States
The United States of America (USA), commonly known as the United States (U.S.) or America, is a federal republic composed of 50 states, a federal district, five major self-governing territories, and various possessions.
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WWV (radio station)
WWV is the call sign of the United States National Institute of Standards and Technology's (NIST) HF ("shortwave") radio station located near Fort Collins, Colorado.
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WWVH
WWVH is the callsign of the U.S. National Institute of Standards and Technology's shortwave radio time signal station in Kekaha, on the island of Kauai in the state of Hawaii.
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Redirects here:
Clock strata, Clock stratum, Clock system.
References
[1] https://en.wikipedia.org/wiki/Clock_network
