Q: What makes a clock a "GPS Wireless Clock"?
Q: What is the difference between our GPS Wireless Clock System and WWVB radio controlled/atomic clocks?
Q: What do GPS Wireless Clocks look like?



Q: What makes a clock a "GPS Wireless Clock"?

A: The major difference between a GPS Wireless Clock and a regular quartz clock is the source of time.

Our Wireless Clock System receives the time directly from the GPS (Global Positioning System) satellites which transmit accurate and reliable time. There are 24 operational GPS satellites orbiting the earth, all of which are transmitting time signals.

Satellites rely on the Cesium atom, which has only one naturally occurring stable isotope namely 133 Cs. The transition between two energy levels of the ground state of this specific isotope corresponds to 9,192,631,770 cycles of the radiation which is exactly 1 second according to International System of Units (SI).

Our Wireless Clock System's Receiver Unit receives the Cesium-based oscillator time from the GPS satellites. It transfers the signal to the Primex Wireless Transmitter which acts as a master clock. Our Transmitter then broadcasts the time signal to all of the system clocks, transmitting real time accurate to the clocks onboard GPS satellites. Clock synchronization is achieved throughout the building.

With the addition of a Wireless Computer Sync, network servers and standalone workstations can also be synchronized to the exact time displayed on the system clocks. Also available is the Wireless Tone Generator. This component works with your GPS Wireless Clock System to produce bells and tones in your facility.

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Q: What is the difference between our GPS Wireless Clock System and WWVB radio controlled/atomic clocks?

A: There are two basic differences: reliability and frequency of transmission.

Radio controlled clocks are only synchronized as long as they receive the radio signal from the NIST Radio Station WWVB.

The Primex Wireless Receiver obtains the time signal directly from the GPS satellites. The Transmitter and Satellite Transmitter units make sure that the whole facility is receiving the GPS-time regardless of the building structure. Unlike radio controlled/atomic clocks, Primex Wireless clocks receive the signal regardless of the building structure and reliance of building penetration.

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Q: What do GPS Wireless Clocks look like?

A: Looking at the face of the clock, there is no difference in appearance between a regular quartz clock and a GPS Wireless Clock. The difference is apparent when the clock is turned over exposing the backside-each of the GPS Wireless Clocks have an embedded antenna capable of received the transmitted time signals.

GPS Wireless Clocks are available in analog and digital models. Various frame and dial styles are available in the analog line, offering models that are suitable for all types of settings.

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