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 5999-00-274-3434
NSN 5855-01-230-4665
NSN 7035-00-179-3924
NSN 5945-01-381-7685
NSN 6685-00-970-3897
NSN 5910-00-905-6425
NSN 5996-00-552-9902
NSN 6620-01-227-0433
NSN 6150-00-201-9583
NSN 6620-01-323-0664
NSN 6135-01-036-3495
NSN 6685-00-128-2318