High q cavity
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 6240-00-543-9321
NSN 5930-01-495-1059
NSN 5990-01-571-7468
NSN 5895-00-369-7108
NSN 5975-01-160-6435
NSN 5960-01-531-9108
NSN 5855-00-937-5320
NSN 5965-01-032-0940
NSN 5985-01-616-6192
NSN 7035-00-104-5506
NSN 5999-00-113-5330
NSN 7035-01-359-1761