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Print/export Download as PDF; Printable version; In other projects ... NPL-CsF2, Yb+ and Sr+ ion clocks, Sr lattice clock, 4 hydrogen masers [5] [6]
A radio clock is a clock that automatically synchronizes itself by means of radio time signals received by a radio receiver. Some manufacturers may label radio clocks as atomic clocks, [151] because the radio signals they receive originate from atomic clocks. Normal low-cost consumer-grade receivers that rely on the amplitude-modulated time ...
Download as PDF; Printable version; In other projects ... Handheld dual channel tactical radio Service History In service 2018 - ongoing ... Frequency Range: R/T ...
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.
The caesium standard is a primary frequency standard in which the photon absorption by transitions between the two hyperfine ground states of caesium-133 atoms is used to control the output frequency. The first caesium clock was built by Louis Essen in 1955 at the National Physical Laboratory in the UK [1] and promoted worldwide by Gernot M. R ...
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Radio time signal stations broadcast the time in both audible and machine-readable time code form that can be used as references for radio clocks and radio-controlled watches. Typically, they use a national or regional longwave digital signal; for example, station WWVB in the U.S. .
The change was necessary due to an ITU HF global reallocation at the 2003 World Radio Conference (WRC-03), where the 7.3 MHz range was reallocated to broadcasting. The power output was later reduced from 10 kW to 5 kW due to complaints from New Zealand that the signal was causing interference on its new frequency. [1]