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 5945-00-199-2346
NSN 6135-01-223-3869
NSN 6610-00-350-1091
NSN 6220-00-647-3096
NSN 6145-01-499-3214
NSN 5925-01-469-6068
NSN 5965-00-529-0602
NSN 5895-00-073-5071
NSN 5990-01-249-8212
NSN 5985-01-079-4508
NSN 2925-01-058-1718
NSN 7035-01-462-2953