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 6145-01-501-0241
NSN 6150-01-634-0575
NSN 5950-01-393-4992
NSN 6220-00-577-3435
NSN 5930-00-501-3138
NSN 5915-00-896-3111
NSN 5915-01-593-5798
NSN 6110-01-281-2067
NSN 4140-01-649-6381
NSN 6130-00-581-9322
NSN 6135-00-377-9165
NSN 5925-00-240-6542