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 6105-01-512-1831
NSN 6240-01-218-5187
NSN 5950-01-565-0460
NSN 5905-00-925-8868
NSN 6620-00-728-3445
NSN 6150-00-907-2647
NSN 6135-01-539-1167
NSN 5855-01-564-1105
NSN 5920-01-305-5318
NSN 5998-01-178-1166
NSN 6610-01-369-9978
NSN 5996-01-391-2733