(a) Design the circuit for the formation of pre-groups and reconversion according to Illustration 166 and Illustration 167. The bandwidth of the source signal - filtered noise - corresponds precisely to the bandwidth of a telephone signal of 300 -3400 Hz.
(b) Take your final test in the use of DASYLab and design a suitable circuit for the primary basic group formation according to Illustration 166. What are the programme limitations of DASYLab for simulation with reference to the creation of secondary, tertiary and quaternary basic groups?