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mazda 3 spare key offers key fobs that let you to control many functions without even having a physical keys in your hand. They can be pretty cool when they are functioning correctly.
When you press the button on your key fob it sends a message to the receiver unit in the car. The receiver unit encrypts and checks the signal. If everything is okay it will carry out the desired action.
Programming
Modern key fobs are pretty complex and difficult to comprehend. They let you lock and unlock your vehicle from a distance. The signal between the key fob to your vehicle is encrypted, which makes it highly secure. It's a difficult to believe that it's possible for something so small to control your entire vehicle but it's a fact.
The key fob is outfitted with a transponder that makes use of radio waves to communicate wirelessly with the receiver in your vehicle. The key fob transmits a unique code to the receiver in your car whenever you hit a button.
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