BER Calculator is used to calculate the Bit Error Ratio (BER) for a transmission system under test given transmission rate, test period and number of received errors. It can also calculate a required test period for a BER test and the number of errors received in a period.
True BER is based on an infinite test time. Since this is impractical, a finite test period for a desired BER and confidence level is calculated using the binomial and Poisson distribution functions. The desired BER is chosen by the user and will be equal to or better than the true BER depending on the confidence level.Â Percentage confidence levels can be selected for any user defined transmission rate. The calculated test period is displayed in a convenient, easy to read format, and the result is explained once it is calculated.