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 5965-01-285-0456
NSN 6610-00-065-2696
NSN 5965-01-348-8761
NSN 2925-01-581-3273
NSN 5910-00-155-4763
NSN 6145-00-072-9382
NSN 5895-01-067-7957
NSN 5920-01-513-0961
NSN 6150-01-415-0535
NSN 6320-01-457-2805
NSN 5930-00-190-0295
NSN 5915-01-123-2906