Saturday, March 26, 2011

Keyless Entry Remote - How It Works-best auto zone

The keyless entry remote system offers to perform a number of functions in a car without manually operating the keys. This system simply works using the radio waves that are transmitted by the fob and received by the system installed in the car.
Keyless entry fobs helps the driver to lock or unlock the car doors without inserting the key into the lock and have become standard with the recent models of cars. The keyless entry system sends out a radio wave from the hand held device, known as fob or a remote, to the receiver installed in the vehicle. The receiver responds to the fob and performs various functions in the car. The cars that come with the keyless remote entry have better safety measures as the system eliminates any chances of the car theft.

Inside the key fob, there is a micro chip that has an encrypted code embedded in it. The coding is uniquely defined to each key in order to make it work with only one system. The micro chip uses radio frequencies to transmit a signal that is received by the system installed right behind the steering wheel of the vehicle. When the receiver identifies the signals, it verifies the code of the key. If matched, the system responds to the key and performs the actions that it had been asked to. If the code doesn't match to the one specified in the car, the vehicle remains idle.
Most of the keyless entry systems work when the user presses a button on the fob in order to transmit the signals to the car. However, there is another version of the keyless entry which automatically detects the key that is within the specified range of the car. This key locks the car doors and activates the alarms as soon as the key fob passes the range limits or unlocks them when the fob enters the given range.
Devices like a transponder that offers a keyless entry relies on the radio waves. A keyless entry system encodes the security coding of the micro chip. The fob includes an inbuilt antenna that emits the radio waves to the receiver antenna of the car. Both of the devices are programmed to work on the same frequencies which enable the transmission. The configuration of both the devices is kept same so that the signals are picked up by the same device and not the neighboring ones. The transmitter micro chip in the fob and the receiver in the car have memory locations to store the configuration. Since security is a considerable issue, the codes are defined in various algorithms that are extremely hard to get hacked by the intruders.
The distance range of the keyless entry system varies as per the models of the cars. Keyless system with push buttons have a longer range as compared to the non-buttons. There are different buttons in the fob that activate various functions in the car from locking or unlocking of the car doors to start the engine. Some remote keys activate/deactivate the car alarm, open up the trunk and shut down or start the fuel pump. For the installation of keyless entry system in your cars, if you have an older model, you can get in touch with an automobile store online where you can find the suitable system at low prices. Some online automotive locksmith offer replacement key blanks for different models of the cars. You can have your key blank cut by laser at a local locksmith and have the system installed in your car.
If you want to upgrade with this technology, you can search the web and find companies that provides a keyless entry system for a variety of car models like a Nissan remote at competent prices.
This article has been written by an expert working for Auto transponder, a leading company providing key fob for many makes and models of cars.

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