Special Features:

Militarized primary cesium beam frequency and time std; non-radiation hardened; features microprocessor control, modular construction, visual time ofday display and serial time code output; 19" rack mount

Properties:

An item that can generate a fundamental frequency with a high degree of accuracy. Harmonics of this fundamental are then used as a reference point for checking throughout the radio spectrum. The standard may be stable crystal oscillator, noncrystal oscillator, tuning fork, atomic beam, molecular beam, gas cell, quantum mechanical resonator, or the like.