Shulou(Shulou.com)06/01 Report--

Today, I will talk to you about how to choose the wireless AP of 2.4GHz and 5GHz. Many people may not know much about it. In order to make you understand better, the editor has summarized the following content for you. I hope you can get something according to this article.

Wireless is a wireless router or a wireless AP. As long as it is a wireless product, there is a channel, so what is the channel? What's so particular about it? Fengrun Da, which has focused on wireless products and solutions for many years, gives a brief introduction.

The channel, also known as the channel or channel, is the channel through which the signal is transmitted in the communication system, which is composed of the transmission medium through which the signal is transmitted from the transmitter to the receiver. The wireless channel is the radio channel with radiated radio waves as the transmission mode, which is simply the channel of wireless data transmission.

Although there are many radio channels in the physical world, there are few channels that can be used by WiFi protocol, and they are mainly concentrated in 2.4GHz and 5GHz bands. In addition, due to the different uses of radio channels in different countries, even in the two public frequency bands of 2.4GHz and 5GHz, the openness of the channel is also different, which is not only for the sake of national security, but also occupied by other applications.

In the 2.4GHz band, the available channels provided by our country are still very abundant. In 2.412-2.472GHz, there are 13 channels to choose from.

Let's take a look at the 5GHz band, including the radio band of 5150MHz-5825MHz, which has a total of 201 channels, but there are not many channels that can be used, especially in our country, only 5 channels (149153157161165) are available. Considering that the channel is the transmission channel of wireless data, that is to say, in the case of dense personnel, the experience effect of the five channels will certainly be affected; however, at present, the devices that support the 5GHz band have not fully occupied the mainstream of the market, so 2.4GHz/5GHz dual-band wireless network equipment will be a good choice, and there will be more channels open in the future.

Advantages and disadvantages of 2.4GHz and 5GHz WiFi channels

The ability to "walk through the wall" is stronger than that of 5GMagne2.4G, which also means less attenuation when it encounters obstacles. However, the strong ability of "passing through the wall" leads to the mutual interference between 2.4G signals is much more serious than that of 5G.

5G uses higher modulation technology, larger band bandwidth and higher wireless speed. 5G frequency is high, which consumes more energy in the process of penetrating obstacles, resulting in more signal attenuation and weaker wall-penetrating ability, but it greatly reduces the interference probability of large-scale deployment of WiFi signals. 5G has more spectrum resources, high frequency and low frequency provide more than 160m bandwidth, while 2.4G can only run 20m bandwidth, not even 40m. If 2.4G is compared to a two-lane highway, 5G is equivalent to an 8-to 16-lane super-wide highway, and its speed is self-evident.

Not only should the transmission speed be fast, but also take into account the strong signal through the wall without attenuation and other advantages, 2.4GHz/5GHz dual-band products came into being under this demand. More and more dual-band 11AC products appear in people's work and life, and spread at a very fast speed. Fengrun dual-band 2.4GHz/5GHz equipment covers indoor AP, outdoor AP, wireless bridge and other series, for the majority of users of wireless WiFi coverage solutions to provide a very comprehensive product line and solutions.

After reading the above, do you have any further understanding of how to choose the wireless AP for 2.4GHz and 5GHz? If you want to know more knowledge or related content, please follow the industry information channel, thank you for your support.

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