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 5935-01-090-1445
NSN 4140-00-289-9263
NSN 6110-01-170-9490
NSN 6105-00-248-4202
NSN 5945-00-127-1056
NSN 5915-01-266-3143
NSN 5996-00-371-2817
NSN 5895-00-427-9617
NSN 6620-01-057-9621
NSN 6145-00-945-7473
NSN 5950-01-179-1886
NSN 2925-00-905-2655