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But for wireless bridge antennas, the larger the angle, the smaller the gain and the shorter the distance that can be transmitted. The general bridge coverage is within 2 kilometers. So, like some distances of more than 3 kilometers and 5 kilometers, can wireless coverage be achieved? 
There are often customers who have such needs. For example, in a sea area, there are several ships. The network HD video camera is installed above. The ship is moving back and forth, and each ship's signal needs to be transmitted to the shore. The distance is about 5 kilometers. If you use an ordinary wireless bridge, the transmission distance cannot be reached. Is it impossible? According to tests conducted by the Leion personnel, three 120-degree antennas can be externally connected with the LA-PTP5-NP, a special equipment for long-distance transmission, to form a 360-degree omnidirectional antenna and achieve wireless coverage of 5 kilometers.
Wireless monitoring is done on some moving vehicles and boats. Because it is moving around a fixed area, it needs to use an omnidirectional antenna for coverage. To ensure that the signal can be transmitted to the receiving point when it is moving.