First, explain the concept of a booster antenna. An antenna is a passive medium that radiates energy. It does not generate or amplify energy. Similar to visible light, if an ordinary light bulb is used, it will be emitted evenly around, and it will be darker at a long distance. But if the same power of light is transmitted with a laser, the transmission distance can be greatly increased.

The same is true for gain antennas. A high gain antenna can make the wifi signal (energy) more concentrated. For general outdoor point-to-point wireless products, the antenna gain can reach as high as 30dBi. In contrast, the general antenna gain of ordinary home routers is only 3,4dBi. . But with such a high antenna gain, the communication distance can reach the level of tens of kilometers. But this also brings a problem, that is, it is extremely sensitive to the installation location. As long as the user end position is moved slightly, the user end wifi signal will be significantly reduced. Therefore, when installing such products, you need to carefully adjust the position and adjust the angle.

The signal strength is good if the location is well selected, but the signal becomes bad if the location moves slightly. In short, the higher the gain of the booster antenna, the more sensitive the position is.