Is there such a thing as a radio clock?
Not to be confused with clock radio, an alarm clock incorporating a broadcast radio receiver.. A radio clock or radio-controlled clock ( RCC) is a 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.
How is the accuracy of a radio clock determined?
Other radio controlled clocks use the time signals transmitted by dedicated transmitters in the shortwave bands. Systems using dedicated time signal stations can achieve accuracy of a few tens of milliseconds. GPS satellite receivers also internally generate accurate time information from the satellite signals.
How is a clock synchronized to a transmitter?
Such a clock may be synchronized to the time sent by a single transmitter, such as many national or regional time transmitters, or may use the multiple transmitters used by satellite navigation systems such as Global Positioning System. Such systems may be used to automatically set clocks or for any purpose where accurate time is needed.
Who are the manufacturers of real time clocks?
Dallas Semiconductor (DS1387) real-time clock from an older PC. This version also contains a battery-backed SRAM. Many integrated circuit manufacturers make RTCs, including Epson, Intersil, IDT, Maxim, NXP Semiconductors, Texas Instruments, STMicroelectronics and Ricoh.
Is there an alarm clock with a radio?
Easily wake up to your favorite radio station with this Insignia™ NS-CLOPP2 alarm clock that features a digital AM/FM tuner and 10 preset stations for simple customization. The large LED display provides a high level of visibility.
Which is the Best Buy for clock radios?
Best Buy customers often prefer the following products when searching for Clock Radios. Browse the top-ranked list of Clock Radios below along with associated reviews and opinions. Browse the top-ranked list of Clock Radios below along with associated reviews and opinions.
What kind of LCD does a clock radio need?
The large, easy-to-read LCD ensures you can view the time in a variety of lighting environments.
What do you listen to when you wake up from a clock radio?
Listen to soothing nature sounds when you wake up to this Sony ICFC1PJ clock radio that features dual alarms for multiple wake times. The swivel projector allows you to display the time on a wall or ceiling for easy viewing during the night.