Is the higher the transmission rate of the wireless module, the better?

Line module is the most important hardware link in the Internet of things, which is irreplaceable. Therefore, when we select the wireless module, each parameter should be carefully considered according to the actual situation of the project. It has happened that the project has been delayed or failed because of a parameter.

When purchasing a wireless module, many customers believe that the higher the parameters of the module, the better the performance of the module. This idea is wrong. The data level of each parameter is not equal to the performance of the module. The parameters of the module should be selected according to the actual situation of the project. Take the transmission rate of the wireless module. Is the higher the transmission rate, the better the performance?

First, let's know what the wireless module transmission rate is. The transmission rate refers to the speed at which the wireless module transmits data. When the transmission rate is higher, the transmission speed is faster, and more data can be transmitted per unit time. After this understanding, do you think the higher the transmission rate, the better? In fact, when the transmission rate is higher, the signal is easier to attenuate, resulting in shorter transmission distance.

It can be seen from the table that when other parameters are the same, the distance of the transmission rate of 0.8kbps is twice that of 9.5kbps, which also proves that the lower the rate, the farther the transmission distance of the wireless module.

So, the higher the transmission rate of the wireless module, the worse the performance? This statement is also wrong. If we have short distance, the high-speed module is certainly better. If we have distance requirements for the module, it is undoubtedly more appropriate to choose the low-speed module.

As for how to choose the transmission rate, we can only choose according to our actual situation, and so can other parameters. Choose the most important parameters suitable for ourselves, not the parameters of the module. The higher the performance, the better.