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CHU is the call sign of a shortwave time signal radio station operated by the Institute for National Measurement Standards of the National Research Council. [1] CHU's signal is used for continuous dissemination of official Canadian government time signals, derived from atomic clocks.
During standard time, the signal was at 13:00 Eastern Standard Time and during Daylight Saving Time, the signal was at 13:00 Eastern Daylight Saving Time. The signal was also heard on some stations of the Ici Radio-Canada Première network at 12:00 ET daily, particularly in Ontario, Quebec and the Maritime provinces.
The Canadian Broadcasting Corporation aired a daily time signal, the National Research Council Time Signal, beginning November 5, 1939. [16] The signal was discontinued on October 15, 2023. [ 17 ]
A time signal is a visible, ... At a meeting of the Royal Canadian Institute on 8 February 1879 he linked it to the anti-meridian of Greenwich (now 180°).
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".
Five short pips and a long pip is broadcast between :55 and :00. The time signal broadcast at 15:00 EET is from Bulgarian Institute of Metrology. Canada – The National Research Council Time Signal was broadcast daily on Ici Radio-Canada Première at 12:00 EST/EDT and on CBC Radio One at 13:00 EST/EDT. It was Canada's longest running radio ...
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The Canadian federal government's Innovation, Science and Economic Development Canada allots the individual call signs to the radio amateurs it licenses. There are 24 possible 2-letter prefixes and 240 2-letter/1-number prefixes available to Canadian operators based on the ITU blocks (CF–CK, CY–CZ, VA–VG, VO, VX–VY and XJ–XO).