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 6685-01-660-0850
NSN 6105-01-616-4504
NSN 5895-01-521-7432
NSN 5910-01-197-7358
NSN 5990-01-079-3271
NSN 5975-01-341-5275
NSN 6610-00-290-0758
NSN 5965-00-055-8013
NSN 6610-01-604-1744
NSN 5990-01-609-4793
NSN 5925-01-337-7847
NSN 5950-01-206-7505