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 6650-01-111-2036
NSN 5985-00-754-0658
NSN 5925-00-055-4910
NSN 5965-01-107-8549
NSN 5855-01-476-4219
NSN 5975-00-402-8499
NSN 5996-00-346-4744
NSN 5965-00-575-4089
NSN 5905-01-388-7373
NSN 7035-01-118-5861
NSN 4140-00-477-1863
NSN 6620-01-453-6764