Stockholm June 25, 2009. Pendulum Instruments, a company of the Orolia Group (NYSE Alternext Paris – FR0010501015 – ALORO), introduces four new options which improves and extends the company’s GPS-12 Portable Frequency Standard family. In 2006, Pendulum Instruments released GPS-12R; a portable GPS controlled rubidium Frequency Standard with battery backup power. The GPS-12R supplies a variety of standard frequencies for general metrology (1, 5 and 10 MHz), base station test (13 MHz) and telecom (E1/T1 clock/data). Unlike non-battery powered Frequency Standards, the GPS-12R maintains an ultra-high accuracy, when moved to test objects inside a building or facility area. Its zero warm-up time even after long transportation, makes it very suitable for telecom and general calibration field use. The GPS-12R is also suitable as an ultra-stable in-house frequency standard for metrology, research labs and test systems.

Now, the GPS-12 family has been extended with:

• Two new oscillator options; OCXO and High Stability Rubidium (complements the existing standard Rubidium oscillator)
• External disciplining option (for letting a Cesium standard control the GPS-12R)
• Control and Monitoring software

The low-cost OCXO option (Model GPS-12), broadens the price and performance spectrum of the GPS-12 family. The new GPS-12 is a high performance unit in its segment.

The High Stability Rubidium (Option HS) allows even higher stability of the GPS-12R, and is very suitable for applications where good phase-noise performance is required, such as in national metrology institutes, military and aerospace companies and oscillator manufacturers.

The external 1-pps disciplining input option (Option 79/01) is intended for use for customers who has a very stable 1-pps source, e.g. from a Cesium standard or a Hydrogen Maser, and/or is located in places with bad GPS reception. The benefit is that you can lock the GPS-12(R) to Cesium accuracy on the bench, and at anytime disconnect from Cesium input and power supply, and move the Cesium stability to a new location

The Control and Monitoring software (GPS12-Monitor) enables the user to read all display info and status, and also to control all front panel settings remotely. The software communicates with GPS-12(R) over the USB bus, and runs on modern MS Windows versions.