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 6620-00-495-7438
NSN 5930-01-351-5752
NSN 6145-01-502-1301
NSN 6130-01-500-1088
NSN 5975-01-271-9027
NSN 5910-01-442-7789
NSN 6105-01-106-1825
NSN 6145-01-353-2563
NSN 5998-01-500-3142
NSN 7035-01-551-4858
NSN 5915-01-363-7347
NSN 6110-01-506-9558