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 6110-01-201-7218
NSN 5999-01-504-5568
NSN 6650-00-242-7961
NSN 5855-01-093-8202
NSN 6150-01-391-1321
NSN 4140-01-500-1187
NSN 5855-01-278-4868
NSN 5835-01-068-4043
NSN 5910-00-938-2657
NSN 5910-01-361-6269
NSN 6620-01-415-5803
NSN 6240-00-548-3992