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 5925-00-235-2870
NSN 6220-01-373-1397
NSN 4140-01-459-7411
NSN 5998-01-289-2076
NSN 5925-01-425-1842
NSN 6150-01-352-3227
NSN 5895-01-112-0532
NSN 6145-00-201-1330
NSN 6620-01-266-1000
NSN 5915-00-901-0315
NSN 5960-01-224-8022
NSN 5965-01-426-8325