How to Increase the Distance of Wireless Module Communication Transmission?

The wireless module can transmit wireless data through wireless technology, and because of its advantages of good adaptability, short construction period and good expandability, it gradually replaces the wired communication method in some data communication systems.

However, during use, some users find that the transmission distance of the wireless module is shorter than the distance described in the product introduction, and cannot be used normally. The following will introduce some methods to increase the communication transmission distance of the wireless module, hoping to be helpful to everyone.

First of all, we have to know that the communication transmission distance of the wireless module is related to the following factors: antenna, receiving sensitivity, air rate, sending and receiving environment, wireless voltage and battery capacity.

1. The obstacle removal of the wireless module

The blocking of obstacles has a great influence on the transmission distance of the wireless module. If there are metal obstacles in the use environment, such as buildings, walls, mountains, woods, etc., then the signal transmission of wireless transmission is not good. Therefore, we can adjust the position of the wireless module, such as offset and height, so that the transmission distance of the wireless module will be farther.

2. Adjust the air rate to change the transmission distance of the wireless module

The higher the air rate, the closer the communication distance, and the higher the packet loss rate.

3. Use a high-gain directional antenna with a wireless module

Antenna gain is one of the most important parameters of an antenna and is very important to the operational quality of a wireless communication system. Using a high-gain antenna, you can increase the signal coverage or increase the signal strength within a certain range. The higher the antenna gain, the better, and the smaller the VSWR, the better.

4. Increase the transmit power with a wireless module

Increase the transmit power. Generally, the greater the power, the longer the communication distance.

The communication distance of the wireless module can be increased by the above method. In addition, if you want to achieve ultra-long transmission distance, it is best to use a spread spectrum module. This kind of module has strong anti-interference ability and strong suppression ability to co-channel interference. Second, this module has low power consumption and can last longer in projects that require battery power. Finally, it has high secrecy and the probability of interception is extremely low.

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