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 6645-01-182-4896
NSN 5855-01-420-4988
NSN 5910-01-381-5624
NSN 6220-00-168-5756
NSN 6145-01-649-9619
NSN 5905-01-332-8493
NSN 6645-01-432-1068
NSN 6645-01-025-1002
NSN 7035-01-507-9372
NSN 5910-01-152-2051
NSN 4140-01-658-2140
NSN 5945-01-163-4258