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 6645-01-571-1234
NSN 6130-01-567-9065
NSN 5996-01-223-9747
NSN 6240-00-342-9756
NSN 5950-00-619-1590
NSN 5910-01-460-6504
NSN 5910-01-460-9436
NSN 6105-00-981-1335
NSN 5999-01-359-8294
NSN 5999-01-634-0576
NSN 6130-00-153-3136
NSN 5985-01-367-6576