EMI control methodologies-application in a low cost TV demodulator system

Electromagnetic radiations from various natural and man-made sources usually affect the performance and longevity of various electronic systems provided appropriate control techniques are not applied to protect them. Severe electromagnetic interference (EMI), at times, causes permanent damage to various components/subsystems/systems requiring compulsory applications of control methodologies from the system design to the evaluation. An indigenously built low cost TV demodulator system, developed by the the Heavy Electronics Engineering Group of ER&DC, Calcutta is described with the focus on the application of various EMI control techniques for safety and the secure performance of the system.