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 7035-01-568-9555
NSN 7035-00-238-3662
NSN 6150-00-704-4018
NSN 5905-01-421-4131
NSN 6240-01-360-0225
NSN 6240-00-991-6929
NSN 5950-01-336-4732
NSN 5950-00-840-2871
NSN 7035-01-106-3476
NSN 5920-00-369-0923
NSN 5990-00-945-0107
NSN 6110-00-250-2582