Benchtop Frequency Standard

The Pendulum GPS-12R Portable Reference clock is an ultra-stable GPS-disciplined Rubidium reference, targeted for telecommunications application. Its high stability and low noise output, makes GPS-12R the ideal reference source for telecom instrumentation and testers, like SDH/PDH/Sonet Analyzers. Its Cesium standard performance, when locked to GPS, makes GPS-12R an ideal calibrator for Wandermeters of all brands. Key Features : - GPS-disciplined Rubidium clock for near-Cesium stability - 2.048 MHz, 1-pps standard outputs for telecom applications - 1.544 MHz (T1) optional - 5 & 10 MHz optional low-noise outputs for general lab use - Internal battery option for transportation and mains-free field use - Optional -48 VDC option for stationary use in telephone exchange stations    Specsheet Pendulum GPS-12R

The frequency standards from Pendulum suit the highest demands for stability. All frequency standards offer multiple buffered outputs (5x or 10x outputs of 10 MHz sine). Choose from the low-cost 6688 based on a very-high-stability oven-controlled SC-cut crystal oscillator or the 6689 with a built-in Rubidium atomic clock. Key Features : - Short warm-up time of only 10 minutes - Up to 11 other instruments can be supplied - Both 10 and 5 MHz always included - Portable ultra-stable Rubidium standard - Suited for use in automatic test systems    Specsheet Pendulum 6688-6689