The FS700 LORAN-C Frequency Standard produces a highly stable and accurate 10 MHz output by locking its oven stabilized crystal oscillator to LORAN-C radio transmissions. The FS700 system consists of a receiver containing amplifiers, filters, data acquisition circuitry, and a remote antenna. The long term stability of the FS700 is that of the transmitted standard, an atomic cesium source. An internal phase meter circuit allows for the precise frequency calibration of external oscillators. An optional distribution amplifier provides multiple outputs of the 10 MHz reference. Option 01 Low phase noise oscillator 02 RS-232 interface