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 5985-00-309-3300
NSN 5925-00-300-6216
NSN 5935-00-670-4043
NSN 5975-01-571-0421
NSN 5935-00-161-5392
NSN 6620-00-171-4035
NSN 2925-00-373-8837
NSN 5950-01-232-2842
NSN 5895-00-263-3982
NSN 6130-01-191-1959
NSN 4140-00-943-7434
NSN 5835-00-419-0575