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 6610-01-568-8732
NSN 6110-01-310-7186
NSN 6645-01-187-3704
NSN 5960-01-399-4327
NSN 5996-01-519-1293
NSN 5920-01-500-7517
NSN 5965-01-023-0809
NSN 5996-01-354-6483
NSN 6145-01-484-8735
NSN 6145-01-382-1681
NSN 5920-01-087-6073
NSN 6110-00-196-8813