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 5975-01-422-5507
NSN 6610-01-389-3082
NSN 5855-01-167-2162
NSN 6650-01-051-7962
NSN 6240-01-187-3687
NSN 6105-00-494-7677
NSN 5905-01-298-6444
NSN 5915-00-289-6692
NSN 5905-01-144-9719
NSN 4140-01-263-2180
NSN 6150-01-386-5647
NSN 5835-01-221-8811