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 5935-01-062-5717
NSN 5930-01-510-9800
NSN 5990-01-151-8756
NSN 5985-01-055-5524
NSN 6610-01-514-7181
NSN 6240-01-289-0871
NSN 5855-01-257-2636
NSN 5915-01-461-8673
NSN 5895-00-195-2751
NSN 5935-01-420-4542
NSN 5915-01-065-1127
NSN 5945-01-348-4206