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 5895-01-318-4471
NSN 5999-00-019-1032
NSN 5895-01-170-6715
NSN 7035-00-295-0451
NSN 6105-00-861-2674
NSN 5915-01-660-9660
NSN 6145-00-622-4634
NSN 6135-00-057-2005
NSN 6130-01-243-3326
NSN 6645-01-059-7090
NSN 5910-00-955-9901
NSN 6145-01-197-2689