| 摘要 |
PURPOSE:To effectively prevent noise, by providing a low-pass filter at the center of a car for a harness connecting a power supply at the front of car and the electrics at the center and rear part, and grounding one end of a capacitor to a body. CONSTITUTION:In case of a car mount radio receiver providing an antenna at a rear window, the shield effect by a body is less. Noise is inputted to the antenna via a harness wired from a power supply 6 at the front of a car. Thus, to avoid noise from the center to the rear of the car, the harness is provided with a low- pass filter 14. The low-pass filter 14 is arranged at the center of the car and one end of a capacitor is grounded to the body. As a result, since no noise is superimposed on the harness 12 close to the antenna of a rear window, the mixture of noise to a ratio receiver can be avoided. |
