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 5855-01-426-5589
NSN 6620-00-943-0449
NSN 5996-01-391-8050
NSN 5905-00-259-6291
NSN 5945-01-496-9659
NSN 6110-00-359-5571
NSN 5920-01-374-8985
NSN 2925-01-315-1714
NSN 5835-01-628-1748
NSN 6610-00-079-8692
NSN 5965-01-055-0102
NSN 6320-01-459-6992