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 2925-00-365-3289
NSN 6320-01-631-7828
NSN 2925-00-963-0943
NSN 5975-01-512-6674
NSN 5990-01-354-6255
NSN 5910-01-581-1270
NSN 5895-00-121-1944
NSN 5950-01-222-0499
NSN 6685-01-457-7980
NSN 5998-01-119-2982
NSN 6220-01-386-5613
NSN 6105-00-527-2193