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Shielding maintenance of a complex cable harnesses which transmit measurement, control, or other type of signals to electronic shielded devices is a difficult and unsolved task in the electromagnetic compatibility community. Several methods have been developed for this purpose during the past years. The vast majority of these methods needs to dismantle and then reconnect the wired electronic system for maintenance test purposes. This paper presents and analyzes a new method based on immunity tests for shielding maintenance of wired electronic systems. The proposed method avoids the cable system disconnection and attacks the problem from the immunity point of view. Index Terms--Electromagnetic compatibility, electromagnetic coupling, electromagnetic shielding, maintenance, wired electronic systems.

In the Master’s of Telecommunication Engineering program at the University of Deusto, Spain, courses in communication circuit design, electronic instrumentation, advanced systems for signal processing and radiocommunication systems allow students to acquire concepts crucial to the fields of electronics and communication. During the educational project presented in this paper, students build a continuous-wave frequency-modulation (CWFM) Doppler radar system from components as simple as ordinary cocoa cans and common electronics components placed on a breadboard without any soldering. One of the goals of the project is to stimulate students' interest in building an entire, completely functional communication system that integrates the knowledge acquired in the various courses and whose functioning they can check in real scenarios. This paper describes this learning project and the ways in which it helps students understand and connect all the concepts that underlie a fully operative communications system, thus meeting the competencies and learning outcomes of the courses involved in the project. [ABSTRACT FROM PUBLISHER]