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 5996-01-153-2359
NSN 2925-01-510-9378
NSN 6220-01-267-9843
NSN 6110-01-279-7621
NSN 5930-00-133-3016
NSN 6135-01-505-1293
NSN 6145-01-005-1374
NSN 5855-01-267-2751
NSN 7035-01-344-8708
NSN 5910-00-944-2073
NSN 4140-00-555-2579
NSN 5975-00-252-2777