Opt 003 is a rack adapter; opt 008 is a systems interface; & opt 010 is a rear input
An instrument used to count the frequency of recurrent electronic events and display the count on the panel of the instrument in numeric form. May also include facilities for a readout printed on tape. May include facilities for a very accurate output which can be used as a secondary transfer standard. It can be used to measure frequency, period, time interval, phase angle, frequency ratio, and for multiple period averaging. See also counter, electronic, digital and indicator, digital display.
Classification: Parts and accessories of articles of schedule b subheading 9030.39
NSN 5895-01-254-7071
NSN 5920-00-686-2671
NSN 5996-01-426-8531
NSN 6645-01-219-5911
NSN 5999-01-198-1615
NSN 6105-01-410-8223
NSN 5915-01-089-8809
NSN 6685-01-089-9606
NSN 5996-01-610-7449
NSN 7035-00-557-5570
NSN 2925-01-439-4451
NSN 5915-01-413-1633