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 6135-00-603-4859
NSN 5925-01-025-7008
NSN 6320-00-082-5868
NSN 6320-00-468-8421
NSN 6220-01-549-5808
NSN 5935-00-387-6679
NSN 5960-01-258-0814
NSN 5990-00-181-2220
NSN 6320-01-352-5653
NSN 6150-00-033-2996
NSN 6685-01-311-8216
NSN 6130-01-430-1941