This article contributes to the study of radio pedagogy in Africa by exploring the Cameroonian case. It shows how Cameroon, after it gained independence in 1960 but faced a shortage of primary school teachers, set up a continuous training scheme based on distance learning via radio broadcasts. Drawing on archival sources of Yaoundé, documentaries and field interviews, and taking a historical approach and a deductive logic, the article analyzes the implementation of this training initiative. It highlights the didactic devices, the teaching methods and the distance learning programs. The analysis shows that many teachers benefited from a professional qualification. The distance learning contributed to their skills development and career advancement. However, the article also reveals that the economic crisis of the 1980s put an end to this continuous training of teachers. It concludes with shedding light on the current challenges of technology use in Cameroon's education.