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 7035-01-657-2163
NSN 6145-01-475-3587
NSN 6240-01-192-5590
NSN 6150-00-710-7191
NSN 5920-01-551-1295
NSN 6320-00-845-3261
NSN 5920-01-652-7136
NSN 5975-00-456-0627
NSN 5965-01-502-9684
NSN 5996-01-532-7467
NSN 5855-00-079-2370
NSN 6130-01-626-3227