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 6610-00-553-5103
NSN 6150-01-396-3092
NSN 6645-01-182-4896
NSN 6650-01-109-8783
NSN 5999-01-401-5322
NSN 6610-01-605-2451
NSN 5965-01-315-5764
NSN 6645-00-189-7075
NSN 5915-01-559-8039
NSN 5985-01-207-0952
NSN 5996-00-221-7663
NSN 5945-00-078-7170