In this work, we illustrated the development of an educational software for project and analysis of radiowave propagation (SEPAR). This software is composed by tools to project links radiowave-based and a tutorial with theoretical elements of electromagnetic waves propagation. In the radiowave design are considered the propagation losses, atmospheric effect, fading, modulation, relief and antennas characteristics. The software was utilized at radiowave design course and the observed results showed that the software is a strong tool to learning and motivation the student's autonomy. It was observed that after supplied the first theoretical concepts the students start to use the software intuitively and could consolidate the illustrated concepts.