Application of the RTL-SDR device in practical teaching of subjects in Electronics and Telecommunications Engineering

Abstract

RealTek’s Software Defined Radio device (SDR), referred to as RTL-SDR, is cheap, compact and easy to use, can be connected to PC (Personal Computer) to receive and display and analyze radio signals propagating in different frequency bands. Therefore, the RTL-SDR device is very useful in supporting practical teaching of radio communication subjects for students to get acquainted and have practical experience with real radio signals such as FM radios, televisions or mobile communication systems. This paper presents a new teaching method for practical exercises on radio communication through the use of RTL-SDR equipment. Students will be able to acquire and consolidate theoretical knowledge through experimentation with this equipment, improving students’ professional practice capacity. Furthermore, this device also reduces investment costs in facilities for universities and colleges, avoiding the need to buy expensive equipment that is difficult to expand features.