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 5925-01-026-5845
NSN 6150-00-781-5529
NSN 5895-00-730-2481
NSN 5985-01-158-3534
NSN 6220-01-135-3841
NSN 6220-01-587-6452
NSN 6650-01-343-1677
NSN 6135-01-304-8652
NSN 5998-01-364-8475
NSN 5965-00-782-8920
NSN 5990-01-008-2515
NSN 4140-01-435-6198