RANCANGAN SISTEM AUDIO PADA STASIUN RADIO PEMANCAR FM STEREO SEBAGAI MEDIA SIARAN KOMUNITAS DAN MEDIA PEMBELAJARAN DI POLITEKNIK PENERBANGAN MEDAN

Abstrak

Medan Aviation Polytechnic strives to create superior transportation personnel according to national and international aviation standards. By using an audio system on a stereo FM transmitter as a community broadcast medium and learning medium for students at the Medan Aviation Polytechnic to understand the working principles of the signal modulation process starting from a pure audio signal to a modulated signal. In this final project the author will try to display the amplitude and frequency of audio signals using an oscilloscope which will become learning material for students. On the other hand, the Medan Aviation Polytechnic also tries to promote its educational institutions through radio communication to the public so that everyone has the same opportunity to participate in efforts to ensure safety in the world of aviation. This makes it easier to distribute information over long distances without requiring a physical connection, so the author tries to design an audio system that will be used to perfect the stereo FM transmitter block and as a learning medium at the Medan Aviation Polytechnic. The testing in this design is a combination of the power supply block, audio system, transmitter, RF amplifier and antenna. The results of the test showed that the information signal received by the receiver was in accordance with the information transmitted.