Option h31 consists of - opt001 high performance cesium beam tube, opt913 rack flange kit, rs-232-c default baud rate 9600, 2 person lift label
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.
Classification: Parts and accessories of articles of schedule b subheading 9030.39
NSN 5925-01-152-2690
NSN 6650-01-049-5361
NSN 5920-00-721-0721
NSN 5930-00-281-4686
NSN 6320-01-232-4664
NSN 6110-01-519-3127
NSN 6620-01-034-4539
NSN 5935-01-174-7978
NSN 6130-01-571-2353
NSN 5945-01-148-4480
NSN 5999-01-240-5244
NSN 5895-01-634-0630