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 5855-00-149-0766
NSN 5985-00-140-1907
NSN 5895-01-280-9253
NSN 5945-01-572-2525
NSN 6620-01-100-8899
NSN 5990-01-465-9235
NSN 5965-00-474-6974
NSN 5975-01-243-0221
NSN 6650-01-495-1269
NSN 6130-01-386-2005
NSN 5935-01-207-4598
NSN 5920-01-367-8656