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 5895-00-457-0571
NSN 5945-00-964-7760
NSN 5975-01-220-3554
NSN 5895-01-080-0401
NSN 6620-01-154-4209
NSN 5990-01-116-2181
NSN 4140-01-516-0129
NSN 5990-01-292-6000
NSN 5895-01-269-5025
NSN 6145-01-656-1967
NSN 5945-00-792-5547
NSN 6135-01-095-5921