ClockWatch Radio Sync
Automatically synchronizes to the National Institute of Standards and Technology WWVB Time Code, the most accurate timekeeping technology, adjusts itself for standard and daylight savings time. Radio controlled Desktop withalarm and P.C. interface for your computer.
The Atomic World Time Dual Alarm Clock automatically synchronizes to the US Atomic Clock in Ft. Collins, CO. utilizing the most accurate timekeeping technology available. This clock has a dual line for display of time, the date, or appointments, or for any selected US and world time.
This clock has also been available for a few years. There are a lot of nice
features on this clock. For example, it's one of the few radio controlled clocks
with two alarms. The two-line display will show you the current, local time in
12-hour mode. The second line will either display the date or the current time
in another time zone anywhere else in the world (except for those places which
are 30 minutes off from a standard time zone). The other time zone display will
also be in 12-hour mode. There is a light on the display to help you see it at
night, but it's the old-fashioned light-bulb type and not the "indiglo-style"
Radio Sync provides accurate time and date information referenced to the United States Atomic Clock Standard. The unit receives VLF (very low frequency) radio signals broadcast by WWVB operated by the National Institute of Standards and Technology (NIST).
A microcomputer processes WWVB signals, maintains an accurate real time clock and hosts the serial communication interface. Received data is correlated over time to set an internal real-time clock (RTC). The RTC is driven by a precision quartz crystal for continuous accurate time reference. Battery power provides internal operating voltages .
In some areas of the country the signal may not be available 24 hours a day. In these cases setup and initial reception are usually best done at night. The unit is designed to keep accurate time during marginal reception periods after time is initially acquired.
The Radio Sync comes with a five-foot interface cable, with a DB9 serial data connector.