Special Features:

Fresolution: selectable, 1 hz/1 mhz; display is sectionalized to read hz, mhz, khz, ghz; automatic operation after band selection; controls provided are: sample rate-100 ms to 10 sec, band select-band 1a, 1b, 11, or 111, resolution-blanking of up to six least significant digits, gate time, reset-resets display to zero, iniitiiates new reading, test-counts/displays internal 10 mhz time base, int/ext time base-rearpanel switch selects time base reference, int position typically used, power-applies line power to counter; minus 30 dbm sensitivity, plus 33 dbm (2 watt) overload protection, multiple signal discrimination, 40 mhz to 200 mhz fm tolerance; lockbox capability; options provide extreme accuracy measurements from 213.0 khz to 1.917 ghz w accuracy of porm 1 ppm to porm 5 ppm; injects precisely measured signals into the subsystems and subassemblies between frequencies of 1.024 mhz and 1.917 mhz; programmable phase locking output loopto a signal generator

Properties:

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.