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 5835-01-460-6054
NSN 4140-00-597-5260
NSN 5965-00-102-8521
NSN 5835-01-351-8429
NSN 5999-01-551-7244
NSN 5999-01-634-0576
NSN 5965-01-249-6349
NSN 5985-01-434-9062
NSN 5930-01-515-1911
NSN 4140-01-381-0099
NSN 6620-01-412-0779
NSN 6685-01-227-2621