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 6240-01-085-3403
NSN 5985-00-624-8929
NSN 5945-01-629-3979
NSN 5905-00-054-5521
NSN 5915-00-965-6281
NSN 6105-01-212-7812
NSN 6685-01-118-9479
NSN 5855-01-353-3958
NSN 5965-01-471-3278
NSN 4140-01-411-7445
NSN 5998-00-183-9850
NSN 5920-01-256-5830