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Query: 500 p1 cable
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  • Prevention and Suppression of RF Interference to Audio Systems
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    Technical Reference > Radio Frequency Interference
    Prevention and Suppression of RF Interference to Audio Systems — Jim Brown
    In this study, the author builds upon Muncy's research, demonstrating that radio-frequency current on cable shields affects audio systems through the "pin 1 problem" and shield-current-induced noise (SCIN). An enhanced equivalent circuit for ferrite chokes is proposed, addressing dimensional resonance and inductor self-resonance. Field tests confirm that chokes reduce interference across 500 kHz to 1,000 MHz. Guidelines for diagnosing and mitigating EMI from various sources are provided for product development and field installations.