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 6320-01-253-1028
NSN 6320-00-731-6134
NSN 5915-01-497-9135
NSN 5895-01-545-6910
NSN 5996-01-340-7810
NSN 5905-01-415-1529
NSN 6685-01-134-5442
NSN 6105-00-473-2314
NSN 6610-01-400-3880
NSN 6105-01-322-3284
NSN 6110-01-100-4445
NSN 6620-01-062-1662