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 5990-00-161-2797
NSN 5895-01-291-4182
NSN 6150-01-158-2258
NSN 6620-01-314-3635
NSN 5920-01-160-4351
NSN 5935-01-257-8712
NSN 5975-00-611-8567
NSN 5910-01-306-9045
NSN 5930-00-119-4618
NSN 5998-01-411-1086
NSN 6105-01-632-6749
NSN 5960-00-233-5488