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 6220-01-116-5742
NSN 7035-00-549-2722
NSN 5855-01-602-6977
NSN 5945-00-837-2453
NSN 5905-00-005-0298
NSN 5999-00-761-6685
NSN 5960-00-504-8790
NSN 5975-00-449-1209
NSN 4140-00-800-7263
NSN 6240-01-616-6813
NSN 6105-00-357-1801
NSN 6685-00-973-2130