Design and Construction of an FM Radio Transmitter at Gamal Abdel Nasser University in Conakry

This study highlights the importance of radio as a major means of communication, particularly in French-speaking Africa. Despite the rise of digital media, radio remains widely used due to its accessibility, reliability, and ability to reach rural areas or regions with limited internet access. It also plays an important social and cultural role by fostering the exchange of information and community engagement. In the university setting, particularly at Gamal Abdel Nasser University in Conakry, the lack of an internal media outlet limits the dissemination of information. The creation of a university frequency modulation (FM) radio station is therefore proposed as a solution to improve internal communication, while also serving as an educational tool for students. We then described the technical design of a simple, low-cost FM transmitter capable of covering a distance of about 200 to 300 meters. We explained how it works, based on an oscillator, electronic components (transistors, capacitors, coils), and a microphone that converts sound into an electrical signal. Details are provided on construction, frequency tuning, and operating conditions. A discussion highlights certain technical limitations, such as interference, frequency instability, and range variability depending on the environment. Solutions are proposed to improve performance, including the use of appropriate antennas and amplifiers. Finally, we have emphasized that establishing a university radio station is technically feasible and beneficial. It serves as an effective tool for communication, learning, and promoting academic activities, while also contributing to the integration of communication technologies into higher education.