An item for the determination of the electrical wavelength or frequency being generated by an electronic equipment such as a radio transmitter. It may be placed in the radiation field of the equipment, thereby operating on the "absorption" principle, or connected into a transmission line or waveguide run between the equipment and a component such as an antenna, thereby operating on the tuned cavity resonance principle. It includes inscriptions from which the wavelength or frequency can be determined directly, or by reference to an associated calibration curve or tabulation. The wavemeter operates in accordance with its design function only when the equipment under measurement is operating. For items, such as grid dip meters, that determine the same information when the equipment under measurement is not operating, see frequency meter.
Classification: Parts and accessories of articles of schedule b subheading 9030.39
NSN 6130-01-213-2266
NSN 5905-01-567-7823
NSN 5920-00-993-4906
NSN 6620-01-043-6424
NSN 5960-01-589-6846
NSN 5950-01-605-1386
NSN 5925-01-341-1729
NSN 5975-01-245-5449
NSN 5996-01-580-7124
NSN 5910-00-926-0111
NSN 5999-00-582-0354
NSN 5996-00-289-9847