Shenzhen Feiyuxin Electronics Co., Ltd
Address: No. 76, Baotong South Road, Xikeng Community, Henggang Town, Longgang District, Shenzhen 518115, China
Mobile: 86 - 13509623256
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Router and Antenna
Understand wireless coverage
The coverage area is the area where the wireless terminal can receive the wireless signal. To use the network normally within the coverage area, you need to ensure that the wireless signal is at a certain strength (such as 2 bars or more).
The coverage of the wireless router is a radius of 300m in an ideal environment, and a single router can cover a general three-bedroom house.
Note: The ideal environment is the theoretical environment, without obstruction and interference, for reference only.
Factors affecting coverage The size of wireless coverage is also called "wall penetration capability". The size of the coverage is affected by the following factors: Wall material and thickness: Generally, through a load-bearing wall (or two ordinary walls), The signal attenuation is large, and it can still be used normally. Wireless transmit power: The stronger the router's wireless transmit power, the greater the signal strength (the better the wall penetration capability). At present, the indoor transmit power of wireless routers generally does not exceed 20dBm. The higher the transmit power of the wireless router, the higher the signal strength, but exceeding the specified range will cause greater electromagnetic radiation and interference. Antenna gain: The greater the gain, the stronger the signal strength. Working frequency band: Currently, WiFi has two frequency bands, 2.4G and 5G. In the same environment, 2.4G signal has better penetration ability than 5G signal. Antenna angle: Generally, the coverage angle of omnidirectional antenna is as follows, and the best effect can be achieved by placing it vertically indoors.
Effect picture of omnidirectional antenna emission
Number of antennas
The coverage of the wireless router is the signal strength. The range depends on the above factors and has no direct relationship with the number of antennas. The coverage of the wireless router is the signal strength. The range depends on the above factors and has no direct relationship with the number of antennas.
The following compares the coverage of various wireless routers and the actual wireless rate at the same location under different antenna numbers:
Note: The transmit power and antenna gain of the following routers are the same.
Note: The above data is for explanatory reference only, not actual test data.
Through the above analysis, we draw the following conclusions:
The wireless signal strength (coverage range) is related to multiple factors such as the environment, router hardware, and antenna position, and not directly related to the number of antennas. The more antennas, the higher the wireless rate at the same location.
Above article from 黎小白
Mobile: 86 - 13509623256