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 6645-01-544-3581
NSN 5965-01-540-8711
NSN 5985-01-164-6753
NSN 5945-00-161-4014
NSN 5985-01-316-0537
NSN 6220-00-551-7516
NSN 4140-01-089-9724
NSN 5915-01-209-5790
NSN 6645-00-518-2068
NSN 6135-01-278-9717
NSN 5910-00-057-5853
NSN 5915-01-345-1447