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 6135-01-293-3066
NSN 6130-00-820-9611
NSN 6620-01-527-4423
NSN 6645-01-614-4838
NSN 5998-01-567-8222
NSN 6135-01-096-1452
NSN 5920-01-462-0055
NSN 5975-00-432-0681
NSN 5996-01-371-2958
NSN 6645-01-185-4061
NSN 5915-01-513-0300
NSN 5945-01-013-9311