US Atomic Clock used to acccurately show time across America

US Atomic Clock

Accurate time using Atomic Clock accuracy is available across North America using the WWVB Atomic Clock time signal transmitted from Colorado, This signal provides the ability to allow synchronisation of the time on computers and other electrical equipment. Atomic clocks achieve such accurate time as they are controlled by radio transmitters these transmitters receive their time signals from amazingly accurate timepieces.

The WWVB signal has a high transmitter power (50,000 watts), a very efficient antenna and an extremely low frequency (60,000 Hz) rate. For comparison, your typical AM radio station broadcasts at a frequency of 1,000,000 Hz. Due to this combination of high power and low frequency it gives the radio waves from WWVB a lot of bounce, this means the single station can therefore cover the entire United States plus much of Canada and Central America. The time codes are sent from WWVB using one of the simplest systems possible, and at a very low data rate of one bit per second.