Special Features:

Rubidium standard; altitude oper ating 40000 feet; power ac 115/230 v; 50-60 or 400 hz; power dc 23 to 30 v ; 5.250 inches h; 16.750 inches w; 16 .375 inches d; clock and standby powe r supply; magnetic field control; integrator limit light

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.