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 5925-00-081-3181
NSN 5965-00-739-2063
NSN 5999-00-227-3931
NSN 6240-01-528-5370
NSN 5910-00-938-4388
NSN 5855-01-049-3812
NSN 6110-01-181-7080
NSN 6110-00-342-7433
NSN 6220-00-316-2500
NSN 4140-00-640-1228
NSN 6110-01-516-1675
NSN 5990-01-512-9129