Whenever we enter the tunnel or corridor, We will subconsciously pull out our cell phone from our pockets to test whether there is a wireless signal in the current position. This phenomenon also exists for wireless Internet access. In different locations in the same wireless LAN, wireless Internet access signals may also encounter different strengths and weaknesses, this problem directly affects the efficiency of wireless Internet access. What measures should we take to improve the efficiency of wireless Internet access when the wireless Internet access signal at a certain location in the wireless LAN is weak? This article specifically summarizes the following tips to help wireless Internet users improve their Internet access efficiency!
Remove obstacle interference
Remove as many obstacles as possible during wireless transmission. Considering that wireless Internet access signals are transmitted through straight lines, once wireless Internet access signals encounter various obstacles during transmission, the intensity of wireless Internet access signals is often weakened to a certain extent. In particular, when wireless Internet access signals are blocked by metal obstacles, their signal attenuation is even greater.
Data shows that when the distance between wireless internet signal transmission is less than 10 meters, even if the internet signal has passed through both sides of the brick wall, wireless Internet access can still reach the ideal highest transmission rate, however, if the wireless internet signal passes through a reinforced concrete wall within the transmission distance, the transmission speed of wireless Internet access is about half of the highest transmission rate. Obviously, obstacles like reinforced concrete walls seriously weaken the signal strength of wireless Internet access, therefore, the placement of wireless router devices or wireless node devices has become an important factor affecting the signal strength of wireless Internet access.
Generally, the signal coverage of a wireless router device or a wireless node device is about 300 feet. However, if the device is not properly placed, or there are obstacles near the wireless router device or the wireless node device, the wireless signal coverage of these devices is not that large. Considering that the antennas used by wireless router devices or wireless node devices are usually in the whole direction, wireless signals can be sent and broadcast within the 360-degree range. Therefore, we should try our best to bring the wireless workstation of the unit close to the center of the wireless router device or the coverage area of the wireless node device.
Of course, wireless workstations in many units may be scattered in several different rooms. When we build a wireless LAN, you can try to place the wireless router device or wireless node device in the intersection of several rooms, I believe that all the workstations in the room can achieve the ideal wireless Internet access effect. Some may say that when a wireless router device or wireless node device is placed at the intersection of several rooms, many wireless workstations will not be able to receive wireless Internet access signals with sufficient strength, this may affect the stability of wireless Internet access. In fact, as long as the distance between wireless signal transmission is not too large, the average signal strength of the wireless workstation in the LAN can reach about 70%, this wireless signal reception intensity will hardly affect the normal connection of the wireless network.
Tips
Is there any way for us to accurately place wireless router devices or wireless node devices to ensure that wireless Internet access signals can effectively cover all wireless workstations in the LAN, and enable them to efficiently access wireless networks all the time? In fact, the clever use of professional tools NetStumbler, we can easily find the most ideal node placement location in the unit Wireless LAN, in this way, the signal coverage of a wireless router device or a wireless node device can reach every corner of the unit. If you want to use the signal emission strength judgment function of NetStumbler, a professional tool, to find a suitable location for the wireless router equipment in the Local Wireless LAN, we should first find and download the NetStumbler installation program from the network, and then install the program to a mobile wireless workstation according to the default settings. After the program is installed, we can enable the wireless Nic device installed in the mobile workstation to find the Wireless Access Point in the Local Wireless LAN. In the future, when you need to find the ideal location for wireless routers or wireless node devices in the Local Wireless LAN, as long as the mobile workstation with the NetStumbler program installed is moved around at any location in the Local Wireless LAN, It is very convenient to find out which area of the Local Wireless LAN is a signal blind zone, which region belongs to the normal receiving region, and then adjust the location of the wireless router device or wireless node device according to the test results of the professional program, this ensures that the wireless router device or the wireless node device is in the most suitable position.
Remove external signal interference
If external electrical signals or magnetic signals interfere with the normal transmission of wireless Internet access signals, the efficiency of wireless Internet access will also be significantly affected. Therefore, we should try our best to remove external signal interference. Like ordinary wireless communication, wireless Internet access signal transmission is also subject to interference from other electromagnetic waves. Because the standard working frequency of IEEE802.11b/g wireless Internet access is 2.4 GHz, the working frequency of many industrial devices in real life is also in this range, therefore, wireless Internet access signals are vulnerable to "harassment" from same-frequency communication signals or electromagnetic signals ".
If a very powerful electric field or magnetic field exists near a wireless LAN, the transmission of wireless Internet signals will inevitably be affected. For example, if a friend places a wireless router device or a wireless node device near a high-power household appliance such as an air conditioner, it is found that when the air conditioner is in the working status, wireless Internet access may experience a strange network disconnection failure, and after the air conditioning equipment is turned off and running, the wireless workstation can access the wireless LAN network normally.
We also found that the transmission speed of wireless Internet access is not very stable whenever an employee uses a mobile phone for wireless calls near a wireless router device or wireless node device, this is mainly because wireless Internet access signals are affected by mobile phone communication signals. Therefore, when we find that there is a strong electric field or strong magnetic field in the Local Wireless LAN, we should try our best to remove these strong electric field or strong magnetic field launch sources as soon as possible, ensure that wireless Internet access signals can be transmitted in a relatively stable environment. If there is a special phenomenon with the same working frequency, we may wish to go to the background management interface of the wireless router device or wireless node device and adjust their working frequency in it, in order to eliminate the impact of mutual interference.