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The Time from NPL is a radio signal broadcast from the Anthorn Radio Station near Anthorn, Cumbria, which serves as the United Kingdom's national time reference. [1] The time signal is derived from three atomic clocks installed at the transmitter site, and is based on time standards maintained by the UK's National Physical Laboratory (NPL) in Teddington. [2]
A modern LF radio-controlled clock. A radio clock or radio-controlled clock (RCC), and often colloquially (and incorrectly [1]) referred to as an "atomic clock", is a type of quartz clock or watch that is automatically synchronized to a time code transmitted by a radio transmitter connected to a time standard such as an atomic clock.
Rugby Radio Station was a large British government radio transmission facility just east of the Hillmorton area of the town of Rugby, Warwickshire in England. The site straddled the A5 trunk road, with most of it in Warwickshire, and part on the other side of the A5 in Northamptonshire. First opened in 1926, at its height in the 1950s it was ...
I have two very large MSF clocks with hands and two small travel clocks with digital display, in London. Before the relocation of MSF they all worked. Since then the large clocks work exactly as before, always right, but the small clocks most of the time don't have a signal and of course drift over the months and don't handle the summertime change.
COAA's Radio Clock [21] F6CTE's CLOCK [15] WWVH: 5, 10, and 15 MHz AM Voice with modified IRIG-Hformat time code on 100 Hz sub-carrier (CCIR code) HF radio and antenna (plus software if automatic updating of computer time is desired) TrueTime TL-3 WWV Receiver; CHU: 3.33 MHz, 7.85 MHz, 14.67 MHz Bell 103 modem tones, decodable by most computer ...
In 1938, the call was changed to CHU, operating on frequencies of 3.33, 7.335 and 14.67 MHz, at a transmitter power of only 10 W. The 1,000 Hz tone imposed on the carrier was derived from the quartz oscillator that determined transmit frequency, but the seconds pulses were still derived from the observatory pendulum clocks.
Standard frequency and time signal service (short: SFTS) is, according to Article 1.53 of the International Telecommunication Union's (ITU) Radio Regulations (RR), [1] "A radiocommunication service for scientific, technical and other purposes, providing the transmission of specified frequencies, time signals, or both, of stated high precision, intended for general reception".
Americas Rugby Championship]] – Originated with four franchised Canadian teams, the Argentina Jaguars, and a "USA Select XV" (effectively the USA A national team). Relaunched in 2016 as the Western Hemisphere's equivalent to the Six Nations Championship; see the table of international competitions for more details. Asia Rugby Championship