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There are control systems in which sensors, actuators and controllers can't communicate by wired networks. In these environments, the use of wireless communications system is an alternative, but this can create other problems in the system, like delay and information loss. This paper investigates the performance of technique a Model Based Control (MBC) used to improve the response of a nonlinear invariant system, using a analogic circuit to simulate a tank level control, and analyzing the control behavior considering a communication with information loss. The results demonstrated that the technique improves the wireless control system.