The Error Probability Trainer brings out the concepts of noise in communication channel from statistical point of view.All Communications systems are to be designed so that the probability of error is minimised. A generator produces pseudo random binary sequence which acts as a signal.A random noise generator   of variable amplitude is there.The signal and the noise are addes to make the transmitted signal.
 The receiver correctly detects the binary sequence present in the mixture of the signal and noise,and the counter indicates the error count.

  Transmitter
  Pseudo random binary    :  Provided  with  facility to   adjust to100 bits or 1000bits    sequence generator   or to run continuously.
  Gaussian random           : Provided, O/P - 0 to 3 V rms.
  noise generator
  Facility to add noise signal  : Provided
  to binary sequence.

  Receiver
  Types                     :  1.Matched filter &
                                    2.Centre sampling type switch selectable.
  Error  Counter      : 1.Four digit, seven segment Indicates accumulated errors.,0.3" height.
                                 2.Comparator to compare  receiver O/P to actual
                                    binary   sequence.
 
The instrument works on 230V + 10%,AC Single Phase