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 5920-01-290-0677
NSN 6145-01-025-6514
NSN 5855-01-125-9167
NSN 5895-01-437-5966
NSN 6685-01-420-4575
NSN 5985-01-576-9991
NSN 6145-00-144-0918
NSN 5950-00-808-5920
NSN 5965-00-267-4173
NSN 7035-01-573-6595
NSN 5960-01-156-1396
NSN 5915-01-463-2465