Hi: Can someone explain to me the meaning of the statement "The noise tolerance of a Viterbi decoder is x dB"? Is noise tolerance the same as BER (as measured in the form 10^(-y))? How are these 2 quants related? I am using a soft demapper that takes in 16 bit input to generate 4 single-byte "soft" inputs per iteration, which are then passed pair wise through a soft input/hard output Viterbi decoder, to generate 1 "hard" bit per pass. Any help is appreciated Partho