The early transmitter for radio broadcasting is so big and bulky that they do occupy numerous spaces. The circuits are mainly designed with valves, which are big in sizes. With the advent of semiconductor materials such as transistors, electronic equipment is now becoming miniaturized such that small transmitters are now handy and compact. In line with this, we choose to design a complete radio broadcasting equipment that is compact. The system units are of two categories, namely: audio console for the processing and mixing of musicals which is basically a condenser microphone. The transmitter unit is where the center frequency is provided. All these were designed to be in compact form. This project is aimed at serving a community using a small radio broadcasting equipment with a power rating of 20 watts. A community of 100 meters in radius should be covered comfortably. The study was to design and construct a power rating of 20-watt Frequency Modulation (FM) transmitter to be received at a range of 100 meters. The transmitter has an audio jack port which picks up very weak sound signals, a transistor, resistors, inductor, and capacitors. The design procedure involves the modification of an output of the transmitter. Based on the procedures adopted, and the tests carried out, the specific findings include a range of 98.5MHz of transmission from a 9V DC battery. The work indicated that the practical frequency modulated (FM) transmitter requiring a low power of 20 Watt can be designed and constructed effectively.