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 5975-00-133-9064
NSN 5835-00-239-9619
NSN 5990-00-959-3312
NSN 5985-00-776-5005
NSN 4140-00-961-5480
NSN 5990-01-107-1003
NSN 6105-00-008-6140
NSN 6610-01-491-0869
NSN 5925-01-091-9731
NSN 6620-00-841-0170
NSN 5915-01-555-8081
NSN 6135-01-210-8715