Most vehicles today have a remote keyless entry system installed that can access the driver, the vehicle without a key. Older vehicles can be upgraded to the market have the same capacity with the purchase of a product. After the market arrangements tend to have greater autonomy as not covered by the same FCC regulations on power. In any case, there are ways to improve the efficiency of the antenna in the vehicle.
No matter if you have the vehicle in a marketSystem came from the plant, and in any case, the receiver connected to an antenna for it. A couple of times is not the antenna on the printed circuit board (PCB) in this case the following applies. If the antenna is a wire that is visible from the receiver, you can try the following. Find the receiver and antenna inside the vehicle can be difficult. While it may be possible, longer antenna, which does much to enhance the antenna height. The increase in antennaLevel would improve performance and increase the range of vehicle, the fob will work. It can be difficult, but there are cases where this is possible. Your after-sale units must be able to accommodate a longer antenna as well.
The length of the antenna does not matter if you are able to make a new. In North America, operates the system Keyless just over 300 MHz and 315 MHz This indicates that the antenna length is less than a meter, is 95 cm, to be precise,would be the ideal antenna length (a full wavelength) are at this frequency. If the antenna is 24 cm or 48 cm of their vehicle for that quarter and equal to half wavelength, respectively. A full wavelength or 95 cm would be ideal.
In most cases this is not possible, but there are still a few tricks to remember. Many variables affect system performance keyless-entry. If you have an aftermarket fob which has much the same power in this case, one can neverI think it's poor performance, try the following.
The farther is the fob off the ground, the better. The floor will reflect the signal to avoid until the vehicle. Holding the FOB on your head are much better results. If you remember from the top, about one meter antenna is perfect for pendants at this frequency to keep in mind your body will also act as an antenna. A person who is a little over six feet high, almost two wavelengths that area better antenna. This tells us that a great man, a performance better than a child who is much shorter, to have. Away from parking vehicles and other obstacles to improve your offer. The objects that are between you and your vehicle as close to the FOB to work.
The last trick that creates great performance FOB reserves the right under the chin. This method works well, although less scientifically, because it works. In some cases,This works better than holding the fob in my head. Trial and error is really the only way to be sure. The last resort is to check the battery in the fob. The batteries are designed to maintain for many years, but there is a new field to maintain your performance.
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