News | March 6, 2006

Pendulum Instruments Introduces GPS-12R Rubidium Frequency Standard

Stockholm, Sweden -- Pendulum Instruments introduces the GPS-12R, a GPS controlled rubidium Frequency Standard. This new instrument receives its frequency stability from the GPS satellite system.

In the basic configuration, the GPS-12 outputs 2.048 MHz and a 1-pps time reference for calibration or synchronization of test instruments and network elements in telecom networks. For SONET networks an optional T1 clock (1.544 MHz) is available. With the built-in Rubidium atomic clock oscillator, the frequency and time stability is adequate, whether in GPS-controlled mode or in hold-over mode. Optional batteries keep the oscillator running for hours without AC mains voltage, resulting in zero warm-up time after transportation.

For time synchronization of DAB or DVB transmitters, the 1-pps output has a high stability, securing uninterrupted operation over several days, even after a loss of GPS. The hold-over drift is <1ms/24h.

For use as a frequency standard for metrology, research labs and test systems, the GPS-12 has optional 1, 5 and 10 MHz outputs with low phase noise.

SOURCE: Pendulum Instruments