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 5960-01-313-0681
NSN 6645-00-942-7170
NSN 6135-01-581-8163
NSN 4140-01-207-7218
NSN 5915-01-484-4284
NSN 6240-01-422-1878
NSN 5998-01-094-5953
NSN 6685-01-202-8900
NSN 5999-00-147-5857
NSN 6320-01-422-1212
NSN 5996-01-088-2260
NSN 6105-00-359-9243