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 5975-00-247-1230
NSN 5950-01-424-0068
NSN 5915-01-459-6601
NSN 5895-01-442-4770
NSN 6145-01-368-0761
NSN 5855-00-481-0019
NSN 6320-00-242-3300
NSN 6135-01-322-4655
NSN 5835-01-278-4683
NSN 7035-01-485-9723
NSN 6110-01-381-1269
NSN 5910-00-563-2038