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  2. Radio clock - Wikipedia

    en.wikipedia.org/wiki/Radio_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. Such a clock may be synchronized to the time ...

  3. WWVB - Wikipedia

    en.wikipedia.org/wiki/WWVB

    NIST. March 2010. WWVB is a time signal radio station near Fort Collins, Colorado and is operated by the National Institute of Standards and Technology (NIST). [1] Most radio-controlled clocks in North America [2] use WWVB's transmissions to set the correct time.

  4. Radio Data System - Wikipedia

    en.wikipedia.org/wiki/Radio_Data_System

    The National Radio Systems Committee has introduced a unique Radio Data System Program Identification code for US FM translators. One type of metadata transmitted by RDS subcarrier is the PI code, which is used by the receiver to uniquely identify the audio program being broadcast by the FM station.

  5. NATO phonetic alphabet - Wikipedia

    en.wikipedia.org/wiki/NATO_phonetic_alphabet

    The International Radiotelephony Spelling Alphabet or simply Radiotelephony Spelling Alphabet, commonly known as the NATO phonetic alphabet, is the most widely used set of clear-code words for communicating the letters of the Roman alphabet. Technically a radiotelephonic spelling alphabet, it goes by various names, including NATO spelling ...

  6. WWV (radio station) - Wikipedia

    en.wikipedia.org/wiki/WWV_(radio_station)

    Coordinates: 40°40′47″N 105°2′33″W. WWV Transmitter Building (2002 or earlier) WWV's 15 MHz antenna. WWV is a shortwave ("high frequency" or HF) radio station, located near Fort Collins, Colorado. It has broadcast a continuous time signal since 1945, and implements United States government frequency standards, with transmitters ...

  7. Time signal - Wikipedia

    en.wikipedia.org/wiki/Time_signal

    Time signal. A time signal is a visible, audible, mechanical, or electronic signal used as a reference to determine the time of day . Church bells or voices announcing hours of prayer gave way to automatically operated chimes on public clocks; however, audible signals (even signal guns) have limited range. Busy sea ports used a visual signal ...

  8. DCF77 - Wikipedia

    en.wikipedia.org/wiki/DCF77

    DCF77 time code transmitter. / 50.01556; 9.01083. DCF77 is a German longwave time signal and standard- frequency radio station. It started service as a standard-frequency station on 1 January 1959. In June 1973 date and time information was added.

  9. Time synchronization in North America - Wikipedia

    en.wikipedia.org/wiki/Time_synchronization_in...

    Radio-controlled clock: NIST list of receivers; AC-100-WWVB Time Receiver; AC-500-MSF Time Receiver; ClockWatch Radio Sync; F6CTE's CLOCK; WWV: 2.5, 5, 10, 15, and 20 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)

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