Hermetically sealed cavity; frequency stabili type 2 parts in 1 million per degrees 0
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 5950-01-015-4990
NSN 5975-00-917-2828
NSN 5895-01-216-5046
NSN 5925-01-207-1403
NSN 5855-01-147-6024
NSN 6145-00-218-7831
NSN 6645-01-544-3581
NSN 5999-01-086-6716
NSN 5998-01-483-4013
NSN 5950-00-832-5104
NSN 5996-00-870-2190
NSN 6220-01-361-3483