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 6105-00-034-6053
NSN 6145-00-943-9549
NSN 4140-01-187-0000
NSN 6145-00-996-8879
NSN 6135-00-764-8680
NSN 6685-00-822-5221
NSN 5998-01-338-1991
NSN 5950-00-007-6446
NSN 5835-01-074-7593
NSN 5975-01-444-2406
NSN 5965-01-395-6368
NSN 6220-01-592-8284