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 5950-01-408-2461
NSN 5996-01-289-8808
NSN 6620-01-595-7459
NSN 5960-00-780-0176
NSN 6320-01-631-7828
NSN 5999-01-634-0576
NSN 6145-01-580-0334
NSN 6620-01-316-7907
NSN 5998-00-226-3177
NSN 5990-00-170-9553
NSN 5930-01-528-2541
NSN 5915-00-480-1880