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 5965-01-227-9937
NSN 5960-01-317-3800
NSN 6650-00-890-0480
NSN 6650-01-597-4817
NSN 5855-00-165-3093
NSN 6320-01-374-9924
NSN 6135-01-579-3534
NSN 6105-00-779-0769
NSN 5950-00-645-4684
NSN 7035-01-021-7956
NSN 5996-01-056-4952
NSN 6135-01-440-9412