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1. #Changing time on my world clock model no. cl030041bg pdf#
2. #Changing time on my world clock model no. cl030041bg tv#

This is an appropriate name, because the FM radio and TV broadcasts that we are accustomed to listening to use frequencies thousands of times higher. The 60 kHz signal is located in a part of the radio spectrum called LF, which stands for low frequency. Your radio controlled clock actually has a miniature radio receiver inside, which is permanently tuned to receive the 60 kHz signal. WWVB broadcasts on a frequency of 60 kHz. In the United States, the signals received by radio controlled clocks originate from NIST Radio Station WWVB, which is located near Fort Collins, Colorado.

A radio controlled clock has a radio inside, which receives a signal that comes from a place where an atomic clock is located. An atomic clock has an atomic oscillator inside (such as a cesium or rubidium oscillator). Some manufacturers refer to their radio controlled clocks as "atomic clocks", which isn't really true. This page provides information about radio controlled clocks, including how they work, where they work, and what to do when they don't work. During the transition from standard time to daylight saving time (DST) they "spring forward" one hour, and when DST is finished they "fall back" one hour.ĭue to technology advances and the economies of scale, radio controlled clocks are now very inexpensive, often costing just a few dollars more than conventional clocks. This means that you should never have to adjust them. They have a tremendous advantage over conventional clocks, they are always right! When working properly, radio controlled clocks always display the correct time, down to the exact second. These clocks are sold in all forms: as wall clocks, desk clocks, travel alarms, and wristwatches. How They Workīy now, you have probably seen or own a radio controlled clock. You may also receive a printed copy by kathryn.stephenson (subject: Please%20send%20me%20a%20copy%20of%20SP960-14) (sending your mailing address) or by calling (303) 497-4343. WWVB Radio Controlled Clocks: Recommended Practices for Manufacturers and Consumers (NIST Special Publication 960-14, August 2009)

#Changing time on my world clock model no. cl030041bg pdf#

To find out more about WWVB radio controlled clocks, please download this 64-page PDF booklet: