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 5996-00-124-5105
NSN 5915-00-236-3216
NSN 5996-00-961-8823
NSN 5895-00-808-7481
NSN 5950-01-049-8443
NSN 5945-00-833-8948
NSN 6620-01-200-8176
NSN 5925-00-078-2842
NSN 5925-00-500-6743
NSN 5925-01-025-0322
NSN 6110-01-497-5753
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