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 5985-01-641-7440
NSN 5915-00-862-5480
NSN 5920-00-155-2173
NSN 5855-01-054-9014
NSN 4140-01-357-5135
NSN 2925-01-063-7876
NSN 5855-01-003-7102
NSN 6685-00-459-4593
NSN 6145-01-359-9481
NSN 6150-01-556-1199
NSN 7035-00-349-8571
NSN 5920-01-179-3366