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 5905-01-351-9396
NSN 5945-01-348-2882
NSN 5915-00-308-5404
NSN 6610-00-826-7235
NSN 5996-00-150-2289
NSN 5999-01-424-0224
NSN 6130-01-141-6894
NSN 6145-01-406-3272
NSN 6320-01-450-1696
NSN 5855-01-291-4763
NSN 6110-01-462-3553
NSN 7035-01-541-8029