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 6145-01-568-8537
NSN 6150-00-263-3451
NSN 5905-01-392-0802
NSN 6135-01-202-8113
NSN 6150-01-080-9384
NSN 5910-01-207-6981
NSN 6620-00-557-7008
NSN 5996-01-363-3117
NSN 5990-00-961-6186
NSN 5920-01-423-8595
NSN 6105-00-055-1069
NSN 5920-01-557-4500