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 2925-00-698-4882
NSN 5999-00-910-6986
NSN 6130-01-574-3115
NSN 6610-01-592-1551
NSN 5895-00-299-0350
NSN 5925-01-650-7666
NSN 5925-01-132-1766
NSN 5920-00-456-5211
NSN 5930-01-374-8423
NSN 6645-01-192-4079
NSN 5835-01-226-2337
NSN 6620-00-050-1086