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 5960-01-258-6708
NSN 5990-01-191-1772
NSN 5915-01-560-6795
NSN 6620-01-037-4631
NSN 5905-01-225-7879
NSN 6110-01-048-2414
NSN 5996-00-956-3325
NSN 5935-01-229-5667
NSN 6150-01-211-7032
NSN 6240-00-518-3541
NSN 6650-00-011-0765
NSN 5895-01-132-0895