Stanford Research FS725 in Cary, NC, USA

Rubidium Frequency Standard The Stanford Research FS725 Rubidium Frequency Standard integrates a rubidium oscillator (SRS model PRS10), a low-noise AC power supply, and distribution amplifiers in a compact, half-width 2U chassis. It provides stable and reliable performance with an estimated 20 year aging of less than 5 x 10-9, and a demonstrated rubidium oscillator MTBF of over 200,000 hours. The FS725 is an ideal instrument for calibration and R & D laboratories, or any application requiring a precision frequency standard.