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 5990-00-503-4724
NSN 5985-01-569-5437
NSN 6145-00-529-6748
NSN 5920-01-491-7613
NSN 6110-01-423-0739
NSN 5925-00-643-5070
NSN 4140-01-266-1696
NSN 5985-01-579-8048
NSN 2925-01-299-6967
NSN 5910-01-374-7661
NSN 5998-01-135-7406
NSN 5920-00-837-7777