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Amateur Radio Repeater Coordinators or coordination groups are all volunteers and have no legal authority to assume jurisdictional or regional control in any area where the Federal Communications Commission regulates the Amateur Radio Service. The United States Code of Federal Regulations Title 47 CFR, Part 97, which are the laws in which the ...
The repeating clock was invented by the English cleric and inventor, the Reverend Edward Barlow in 1676. [2]: 206 His innovation was the rack and snail striking mechanism, which could be made to repeat easily and became the standard mechanism used in both clock and watch repeaters ever since. The best kind of repeating clocks were expensive to ...
The Intel 8253 PIT was the original timing device used on IBM PC compatibles.It used a 1.193182 MHz clock signal (one third of the color burst frequency used by NTSC, one twelfth of the system clock crystal oscillator, [1] therefore one quarter of the 4.77 MHz CPU clock) and contains three timers.
The dynamotor took from 1/10 to 1/4 of a second to "spin up" to full power. Police officers were trained to push the microphone button, then pause briefly before speaking; however, sometimes they would forget to wait. Preceding each code with "ten-" gave the radio transmitter time to reach full power.
Bells that play clock chimes are commonly placed in bell towers and elaborate floor clocks, but may be found any place where a large clock is installed. [ 1 ] The chime is distinct from the striking of the hour on a single bell, although a clock that plays a chime normally plays the associated hour strike as well, while the bell stuck on the ...
Time signals on CBC broadcasts may be delayed up to 3 seconds due to network processing delays between the local radio transmitter and the time signal origin in Ottawa. The CBC's predecessor, the Canadian National Railways Radio network , broadcast the time signal over its Ottawa station , CNRO (originally CKCH), at 9 pm daily and also on its ...
Around September 1953, the radio network produced a program titled Salute to the Three Chimes of NBC, which was summarized as "Five very different musical groups play an original composition, based on the NBC chimes, called 'Bing, Bang, Bong: A Fantasy On A Trademark.'" [48] "Let's Go" by Ray Charles (on his 1961 album Genius + Soul = Jazz)
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.