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 6150-01-242-9239
NSN 4140-01-469-0028
NSN 5915-01-425-4186
NSN 5835-00-389-2816
NSN 5895-00-991-4582
NSN 6650-01-395-4096
NSN 6650-01-386-6711
NSN 5905-00-470-0077
NSN 5915-00-080-2338
NSN 5975-01-451-3331
NSN 6320-00-432-2772
NSN 7035-01-085-5955