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 5930-01-452-4659
NSN 6650-01-470-1315
NSN 5990-01-087-3103
NSN 5960-01-430-3911
NSN 5895-00-439-8213
NSN 6240-00-600-7138
NSN 5835-01-327-6324
NSN 2925-00-355-5130
NSN 5835-01-386-4027
NSN 5996-01-385-8345
NSN 6620-00-246-5159
NSN 6105-00-231-2932