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 5996-01-296-0802
NSN 6220-01-227-1917
NSN 5930-01-395-8692
NSN 6650-01-262-7296
NSN 5935-01-498-8841
NSN 5895-01-629-5760
NSN 4140-01-373-4524
NSN 5855-00-361-0167
NSN 6145-01-246-3988
NSN 6645-00-216-6126
NSN 5965-01-529-9938
NSN 6645-00-987-7829