Fig. 5.2 Block diagram components for a system

Fig. 5.3 Cascaded subsystems

Fig. 5.5 Parallel subsystems

Fig. 5.6 Feedback control system

Fig. 5.14 Unity feedback second-order closed system

__K_C(s) = ____s(s+a)___ = _____K____R(s) 1 + ___K___ s2 + as + K s(s+a)

Fig. 5.7 Equivalent forms, summing junctions

Fig. 5.8 Equivalent forms, pickoff points

Fig. 5.34 Antenna Feedback