+5 votes
35 views
in Android Tutorial by (76.3k points)
reopened
Wi-Fi: 2.4 GHz or 5 GHz, which network to choose to improve speed

1 Answer

+3 votes
by (506k points)
 
Best answer

image

Wi-Fi technology has completely changed our relationship with the internet. However, the speeds offered by boxes or wireless routers are not always up to users' expectations. How to improve the quality of your Wi-Fi? Are there any differences between a 2.4 GHz and 5 GHz wireless network? This is what we will see in the rest of this article..

What is a router or a Dual Band box for?

The new generations of routers or boxes have a host of features to improve the coverage and speed of your wireless network. Among these new technologies, we find the Dual Band system.

Little known to the general public, this device allows transmission on two different radio frequency bands, namely 2.4 GHz or 5 GHz. The first has been used since the creation of Wi-Fi (wireless communication protocol). The newer 5 GHz band theoretically offers higher maximum throughput than its 2.4 GHz counterpart..

As you will see in the rest of the article, there is no one frequency better than the other. The choice of one or the other of these technologies depends above all on your uses, your geographical location and the type of devices used.

The advantages and disadvantages of a Wi-Fi connection with a 2.4 GHz band

Most Wi-Fi routers and internet boxes currently on the market can manage the two radio frequencies (2.4 GHz and 5 GHz). However, most users do not know how these two technologies work..

The 2.4 GHz frequency band offers speeds limited to 450 to 600 Mb / s, the maximum in optimal conditions. Another important point, this speed varies according to the standard supported by your router (802.11b, 802.11g, 802.11n or 802.11ac).

Another problem is that the 2.4 GHz band is very crowded. It is used by many wireless devices such as wireless phones, Bluetooth devices, baby phones, neighbors' internet boxes and even microwave ovens. The interference generated by all these devices can cause a significant drop in transfer speed.

In terms of positive points, we can note the fact that the 2.4 GHz band offers a greater range. It crosses more easily objects and materials such as walls. The coverage area is wider than with the 5 GHz frequency.

The strengths and weaknesses of the 5 GHz band

Because of its relative novelty, the 5 GHz band is used less and therefore less congested. This technology thus makes it possible to enjoy a more stable and faster internet connection. The (theoretical) speeds can reach up to 1 Gb / s. If you are a fan of streaming (Netflix, YouTube) or online gaming, no doubt this argument will appeal to you.

Be careful, however, the 5 GHz band struggles to pass through walls and solid objects. It is best to use this frequency as close to the router as possible. If you have a large house, it is better to go for the 2.4 GHz band. Below are some tips for improving your Wi-Fi connection.

Finally, last important point, dual-band routers today know how to emit a Wi-Fi signal on both bands simultaneously. Once the option is activated, you will see two different networks (SSID) appear in the wireless network settings of your smartphone. Then it's up to you to choose the one that suits you best.


...