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 5975-01-412-7477
NSN 5925-00-259-7486
NSN 5915-01-440-7636
NSN 6650-01-367-7593
NSN 6135-01-369-9792
NSN 6685-00-608-3295
NSN 5895-00-857-9882
NSN 6145-01-548-8099
NSN 6145-00-952-2872
NSN 5945-01-632-8815
NSN 5920-00-549-2203
NSN 5998-00-391-5986