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 5915-01-338-6431
NSN 6650-00-518-2962
NSN 5998-00-998-7875
NSN 6220-00-515-6998
NSN 5950-01-642-0916
NSN 5950-00-488-3056
NSN 5975-00-051-7337
NSN 6110-01-367-5162
NSN 5965-01-282-4587
NSN 5996-01-201-1299
NSN 6220-01-574-0758
NSN 6320-01-072-2073