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 5999-00-471-4971
NSN 5950-00-408-2292
NSN 5950-00-689-3649
NSN 6145-01-487-8981
NSN 5965-01-540-2429
NSN 4140-01-339-2829
NSN 6130-01-423-3704
NSN 5950-01-190-5677
NSN 5999-01-056-4145
NSN 5910-01-140-8269
NSN 5985-00-222-6066
NSN 5905-01-529-1641