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 6240-00-594-7138
NSN 5855-00-089-3974
NSN 6130-01-347-0867
NSN 5920-01-527-5388
NSN 6650-01-428-9958
NSN 5990-00-362-1453
NSN 6135-00-235-1938
NSN 6145-00-130-8078
NSN 7035-01-631-4095
NSN 5996-01-479-2091
NSN 6150-01-215-4787
NSN 5965-00-958-7455