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 5925-01-248-8394
NSN 6105-01-467-5468
NSN 5985-01-288-5194
NSN 5996-00-619-1877
NSN 5960-01-276-7836
NSN 6685-01-632-8809
NSN 5930-00-338-9563
NSN 5895-00-067-4262
NSN 5996-01-510-6551
NSN 6320-00-098-2858
NSN 4140-00-239-7409
NSN 6110-01-030-6073