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 5930-01-596-0115
NSN 6105-01-452-3490
NSN 6320-01-029-4220
NSN 5996-01-167-9234
NSN 6650-00-916-5914
NSN 5895-01-634-0630
NSN 6320-01-089-9086
NSN 6620-00-757-7511
NSN 5975-01-590-2734
NSN 6110-00-185-8147
NSN 4140-00-182-1454
NSN 6110-00-349-9331