Abstract-This paper presents the implementation of communication system design course using projected-based learning method. In the project, students designed and simulated communication system in active learning ways. Communication system is interdisciplinary, which is related to knowledge from several courses such as communication principle, information theory and coding, digital signal and processing. To achieve project goals, students had to integrate the knowledge obtained in these courses. In the process of project, every student worked in a small group and tackled the difficult problems by negotiate among group members. Students' final scores depend on personal performance, group performance and final reports. Effectiveness of the learning methodology was evaluated through student's survey and comparing students' scores for 2014-2015 with that of 2013-2014. Evaluation results show that student's understanding of communication theoretical concepts is enhanced. Meanwhile, it fosters students' transversal abilities such as communication and teamwork cooperation.