An item which generates a highly accurate signal of one or more fixed frequencies for calibration of frequencies from other sources. Does not include oscillator (as modified). For devices which are designed as voltage sources, see generator, signal. See also frequency meter.
Classification: Parts and accessories of articles of schedule b subheading 9030.39
NSN 6645-00-192-1152
NSN 5990-01-056-6413
NSN 5996-01-303-4630
NSN 7035-01-383-9357
NSN 6220-01-090-0126
NSN 6220-00-205-2040
NSN 6650-00-840-9758
NSN 5920-00-221-8377
NSN 5905-01-412-6227
NSN 5985-00-840-7104
NSN 5925-00-841-9425
NSN 7035-01-383-6549