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 5960-00-030-5485
NSN 6320-00-089-9426
NSN 5945-00-314-4554
NSN 5999-01-239-9762
NSN 5835-00-153-4100
NSN 5999-01-100-3870
NSN 6650-00-021-9555
NSN 5895-01-094-1960
NSN 5950-01-652-2646
NSN 7035-01-421-7159
NSN 6320-00-831-2227
NSN 5996-01-175-7881