This paper presents a methodology that includes the structure and the care needed to design and implement a Single Frequency Network (SFN), with the benefits of energy conservation, transmitted power, and optimization of coverage area. It shows the network synchronization options and how to adjust the converged signal coverage areas within a region, showing clearly that this technology is a good and safe technological investment option. It also contains a history of one of the greatest technological developments that has occurred, indicating their form and difficulty in analog times. In the theoretical review are evidenced the technical limitations and the actions towards building a new, modern and robust digital transmission technology