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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 operating on 2.5, 5, 10, 15, 20, and 25 MHz. [1]
The only information transmitted is the time within the day (one of 48 half hours), plus the current U.S. daylight saving time status, making 2×48 = 96 possible time codes. An additional 2×14 = 28 time codes are transmitted between 04:10 and 10:46 UTC on days when daylight saving time is changing, providing several hours' warning of an ...
WWVH is the Pacific sister station to WWV, and has a similar broadcast format. Like WWV, WWVH's main function is the dissemination of the official U.S. Government time and frequency standard. Due to ionospheric conditions, at certain times and locations some listeners may receive both WWV and WWVH on the same frequency at the same time. The ...
AC-100-WWVB Time Receiver; AC-500-MSF Time Receiver; ClockWatch Radio Sync [20] F6CTE's CLOCK [15] 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) TrueTime TL-3 WWV Receiver
WWVA (1170 kHz, NewsRadio 1170) is an American AM radio station in Wheeling, West Virginia.The station is owned by iHeartMedia, Inc. and uses the moniker "The Big One".. It is West Virginia's only class A 50,000–watt clear-channel station, sharing the frequency's Class A status with KOTV in Tulsa, Oklahoma, and KJNP in North Pole, Alaska.
One was installed in 1833 on the roof of the Royal Observatory in Greenwich, London, and the time ball has dropped at 1:00 pm every day since then. [8] The first American time ball went into service in 1845. [7] In New York City, the ceremonial Times Square Ball drop on New Year's Eve in Times Square is a vestige of a visual time signal.
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Their model GC-1000 "Most Accurate Clock" received shortwave time signals from radio station WWV in Fort Collins, Colorado. It automatically switched between WWV's 5, 10, and 15 MHz frequencies to find the strongest signal as conditions changed through the day and year. It kept time during periods of poor reception with a quartz-crystal ...