A hands-on guide to finding sources of electromagnetic interference (EMI) and solving problems, covering basic theories of EMI and explaining why this problem is becoming more serious as the international scope of the communications and electronics industries grows. Addresses technicians' needs and interests with hands-on solutions, covering troubleshooting, correction, and prevention of EMI problems. Examines grounding, circuit shielding, and prevention, and discusses sources of EMI such as power lines, transmitters, consumer electronics, and telephones. Carr is author of some 88 books and 700 articles on electronics topics.