Installation Of The Transmitting Device
Electronically controlled computers are designed not to be interrupted by other radio signals, but it can be affected by a remote control of even less than 25 W output if the antenna or cable of a remote control is wired near the computer. To prevent this, follow the below directions.
- Install the antenna on the roof or rear bumper.
- Keep the antenna cables at least 200 mm away from the computer or wiring as they transmit radio signals.
- Decrease the standing-wave ratio by using proper antennas and cables.
- Do not install remote control with high output.
- After installing the remote control, check the engine by generating radio signals while idling the engine.
NOTE:
- The standing-wave ratio: When connected to cables and antennas of different impedance, the input impedance Zin changes based on the length of cable and frequency of remote control, and the voltage range also changes based on position.
- This rate of the maximum and the minimum voltage is called the standing-wave ratio, and also refers to the rate of the antenna impedance and cable impedance.
- The volume of radio signals from cables is proportional to the standing-wave ratio volume, hence the influence to electronic parts increases.