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 5945-00-149-0619
NSN 6150-01-434-9024
NSN 5990-01-543-6301
NSN 5855-01-520-8747
NSN 5910-01-056-3655
NSN 6110-01-432-4517
NSN 5895-00-284-4835
NSN 6110-01-435-4400
NSN 6110-01-406-3623
NSN 5950-01-033-9695
NSN 6610-00-337-5483
NSN 5855-01-398-6704