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 6110-01-400-4207
NSN 5855-01-653-4319
NSN 6620-01-631-5936
NSN 6610-00-456-2364
NSN 5930-00-552-1946
NSN 5910-01-327-0287
NSN 5950-00-477-1304
NSN 5999-00-536-3311
NSN 5895-01-153-1486
NSN 6130-01-306-6449
NSN 5998-01-132-2657
NSN 6220-01-144-4287