A radio control transmitter for a model is disclosed wherein a control range is limited to not to exceed a maximum control range without using a mechanical means. In accordance with the transmitter, an added control range being a sum of two or more of the control ranges is calculated, whether the added control range exceeds a maximum control range set to correspond to the operating section of the object to be controlled is determined, and the control range is corrected when the added control range exceeds the maximum control range.