Differences between 2.4G and 5GWiFi signals in wireless routers

Nowadays, the wireless network and Wireless Router of the Optical Cat have two or three frequency bands. Generally, the 2.4G and 5G WiFi frequency bands are common. If we cannot distinguish between these two frequency bands, our mobile phones or tablets, TVs, and smart home devices may not be connected or the network may be too laggy.

2.4G and 5G refer to the operating frequency range of wireless devices, and wireless routers currently have wireless network functions, which are also integrated into many optical cats.

The 2.4G operating frequency band ranges from 2400 to 2483.5MHz, with each channel occupying approximately 20M. 2.4G is divided into 13 channels, and is mainly based on technical standards such as IEEE 802.11b. The supported modes include 802.11b, 802.11g, 802.11b/g, 802.11b/g/n/ax, with a bandwidth of 20MHz and 40MHz and a working frequency band of 2.4GHz.

Advantages and disadvantages of 2.4G and 5G respectively

At present, there are many dual frequency wireless devices that support dual frequency (2.4GHz+5GHz) in the market, and the general feature of these devices is that they have four independent external antennas. However, at the same time, wireless terminals can only choose one frequency band to access the corresponding wireless network. So, what are the advantages and disadvantages of these two frequency bands?

Let's compare these two frequency bands in terms of wall penetration effect and network speed.

Wall piercing effect

The physical characteristic of electromagnetic waves is that the longer the wavelength, the less attenuation, and it is easier to bypass obstacles and continue to propagate. The 5G signal has a high frequency and short wavelength, while the 2.4G signal has a low frequency and long wavelength, so the attenuation of the 5G signal is greater when passing through obstacles.

Therefore, at the same distance, the wall penetration ability of 5G signals is weaker than that of 2.4G signals, which is the case with all dual frequency wireless routers.

Network speed

The operating frequency of the 2.4G frequency band is 2.4-2.4835GHz, with a bandwidth of 83.5MHz. The operating frequency of the 5G frequency band is 5.150~5.725GHz. For example, with a 2x2 antenna bandwidth of 20M, the 2.4G frequency band can achieve a maximum transmission speed of 144Mbps.

At present, wireless terminals support the 2.4G frequency band by default, and there are relatively few wireless terminals that support the 5G frequency band.

The bandwidth of the 5G frequency band is relatively wide, and the wireless environment is relatively clean. Therefore, under the same signal strength, the network speed of the 5G frequency band is faster, especially suitable for applications with high requirements for network speed and latency, such as downloads, voice, online games, etc. For example, under a 2x2 day line of 80M bandwidth, the 5G frequency band can achieve a maximum transmission speed of 866Mbps.

Advantages and disadvantages of 2.4G and 5GWiFi respectively:

Which frequency band is more suitable to use?

In summary, the 2,4G and 5G frequency bands each have their own advantages and disadvantages, but it is not the only choice between the two. When the wireless network is used in a complex environment with diverse terminals and a large number of connections, the two frequency bands can be combined to maximize wireless advantages.

For ordinary home users, path suggestion: turn off the dual band function of the wireless router, and connect the set-top box, Streaming television, desktop computer, laptop and other terminals that are less mobile or close to the wireless router. If the 5G WiFi signal is good, then connect them to the 5G band wireless network Vehicle Router .

And the smart home device terminal at home is connected to a 2.4G wireless network, because some smart home devices only support 2.4G wireless networks, they only need to be connected to the internet and do not require much faster network speed IOT Gateway.

As for the camera, it is recommended to connect to a faster 5G wireless network on the path, as we usually need to watch the camera in real-time, and only 5G networks will not get stuck Industrial Router.