BBK Electronics BK Precision 1856D Manual De Usuario

5 

          

   This reciprocal FREQUENCY COUNTER is a microprocessor-controlled 

instrument for frequency measurement.  Due to uniquely developed LSI circuitry in 

an expanding/reciprocal system, high accuracy with 9-digit resolution is achieved 

with a one second gate time.  It covers a frequency range of from 0.1 Hz to 3.5 

GHz based on a 10 MHz TCO (Temperature Controlled Oscillator).  Other features 

include:   

 

 

l  RPM (Revolutions Per Minute) Measuring Function 
l  External Frequency Standard Input with 9 Digit LED Display 
l  Attenuator 
l  Period 
l  Total 
l  Low Pass Filter 
l  Line Filter 

 

   

   Also provided is a self-test function for a quick check of several operating modes. 

Each mode can be selected by a front panel push button switch with automatic 

decimal points and indicators. The high accuracy, sensitivity and versatility of this 

counter make it an extremely valuable instrument to the scientist, engineer, 

experimenter and communications technician. Lightweight and compact size make it 

practical for use by the hobbyist or field technician.