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 4140-00-136-9214
NSN 5990-01-459-9533
NSN 6240-00-361-1421
NSN 5935-01-487-6660
NSN 5998-01-425-1448
NSN 6620-01-648-1594
NSN 5990-01-565-2226
NSN 6105-01-430-0127
NSN 6320-00-110-8005
NSN 5930-01-441-1932
NSN 4140-00-196-3638
NSN 6220-01-186-1327