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 6610-00-139-1105
NSN 6110-00-133-2429
NSN 5855-00-198-3197
NSN 2925-00-837-3948
NSN 6645-00-169-6759
NSN 6220-01-296-1827
NSN 5996-01-167-3922
NSN 6645-01-344-8702
NSN 4140-01-294-0886
NSN 5998-01-621-3026
NSN 6610-00-126-7425
NSN 6620-01-195-4602