The present invention relates to signal handling equipment, signal handling method and program. In a signal handling equipment being suitable to handle signal transmitted through aconveying path, predicting waveform distortion of signal value of specific symbol based on distortion characteristics of symbol transmitted before the specific symbol, and removing the distortion from the waveform of received signal, so as to generate waveform removed distortion. Calculating comparison value for each permissible value of the specific symbol by detracting forecasting signal value of specific symbol from the waveform removed distortion. The symbol value corresponding to the least comparison value is identified as the value of specific symbol. Indicating incorrect shadiness degree error shadiness level value for each calculation of symbols of prescribed amount, and correcting definitive symbol value based on the error shadiness level value.