เนื้อหา

hello Have you ever bought a new Wi-Fi router and noticed that it has both 2.4 GHz and 5 GHz bands? Or maybe your existing router has both. And have you ever wondered why some routers have these dual frequency bands? That's what we're going to talk about in this article.

Frequency bands are now how wireless data is transmitted between devices. These frequencies are radio waves that carry information and these frequencies are either 2.4 GHz or 5 GHz. There are now a lot of Wi-Fi. Wi-Fi routers will only transmit in one of these bands, which will be the 2.4 band.

And that's because it's the most common frequency, and these are called single-band routers. But many newer Wi-Fi routers transmit both the 2.4 GHz and 5 GHz frequency bands. And these are called dual-band Wi-Fi routers.

Now 2.4 band works fine. It's a standard band. But the problem is that it's not just the standard band used in Wi-Fi routers, it's also the standard band used in many devices, such as ovens, microwaves, cordless phones. All Bluetooth devices and wireless cameras It uses the 2.4 GHz frequency band and this has become a problem as other devices Many use the 2.4 signal band, making it too crowded and causing This causes a lot of interference to the Wi-Fi signal, and when this happens it slows down the Wi-Fi network speed and thins.

That is why the 5 GHz band was added to 5 bands as the newer band. Therefore, it is not as popular as 2.4, so it is used by fewer devices. And because it's used by fewer devices, 5 GHz isn't as congested. Therefore, there is no or minimal noise. Therefore, using 5 GHz will help alleviate problems related to slow network speeds and dropped connections that would be caused by Interference from other devices

Another reason why 2.4 is more vulnerable to interference. Due to differences in wireless channels Now if you're not familiar with what a wireless channel is, a wireless channel is just a method. Tune and modify frequencies Sometimes you may need to change to a different channel. If you experience interference from another wireless device and change to the channel different will give you the ability The 2.4 GHz frequency band has 11 channels to choose from, but from these 11 channels, only 3 channels do not overlap.

So you basically have 3 solid channels to choose from, but 5 GHz has more channels, with 25 non-overlapping channels.
The other difference between the 2.4 GHz and 5 GHz bands is the speed and range covered. The 2.4 GHz band transmits data at a slower speed than the 5 GHz but has a longer range than the 5 GHz. The 5 GHz band transmits. Data at faster speeds than 2.4 but with a shorter range. 5 GHz has a shorter range. Because it has a higher frequency and the higher the frequency, it has a harder time penetrating solid objects such as floors and walls in buildings.
So, as you can see in this illustration, a dual-band Wi-Fi router. This is broadcasting the 2.4 GHz band, which is green, and it is also broadcasting the 5 GHz band, which is red. As you can see, the 2.4 band has a longer range and the signal can cover most of this building. It can also penetrate through floors and walls, but the 5 GHz band has a shorter range and the signal cannot penetrate a second floor or walls, which limits the distance inside the building.
The question is, which bar do you actually want to use? And that really depends on your situation. Both have advantages and disadvantages. The advantage of 2.4 GHz is that it has a longer range and is better at penetrating solid objects. But the disadvantage is that it is more vulnerable to interference because many other devices use the same frequency band and are slower than 5 GHz. And the advantage of 5 GHz is that it has a higher data transfer speed and is less vulnerable to interference. Less But at the same time, it has a shorter range and has a harder time penetrating through solid objects, and if you are interested in getting a dual-band Wi-Fi router,

Page 3