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 5920-01-491-4172
NSN
NSN 5985-01-352-5696
NSN 5920-01-065-1824
NSN 5895-01-245-3563
NSN 5930-01-602-2371
NSN 5999-01-082-2111
NSN 5985-01-305-7682
NSN 5965-01-332-9825
NSN 6650-00-466-1697
NSN 6105-00-422-4098
NSN 5925-00-814-4088