In the realm of wireless connectivity, Wi-Fi reigns supreme, providing seamless access to the internet and enabling a host of digital experiences. However, maximizing Wi-Fi performance often hinges on a critical decision, but one of the most significant options among all other optimization methods and techniques is choice of a communication channel.
This article will detail the basics of what Wi-Fi channels are and how to identify the best Wi-Fi channel for your router, as well as adjusting these in settings so that you have an optimal signal.
The WiFi network operates in specific frequency bands, these are 2.4 GHz and 5 GHz each with its own properties and specifications.
2.4 GHz band is the most used Wi-Fi frequency, It has higher range and more compatible with older devices. While well-established, its popularity has made it as congested — and therefore more susceptible to interference (which would limit performance).
The 5 GHz band is less common than the 2.4 GHz band, but have more bandwidth and less interference, which makes this frequency band more suitable for uses such as HD video streaming, online gaming, and other similar activities.
A WiFi channel is basically a small cut of the frequency through which our wireless networks send and receive data. Two frequencies are available for Wi-Fi networks, 2.4 GHz with 14 channels and 5 GHz with 25 channels (but only 8 channels are defined for indoor routers).
Wi-Fi routers operate on two frequency bands: 2.4 GHz and 5 GHz. Each band has a number of channels that can be used by routers and devices to send and receive data. However, not all channels are equal. Some channels may have more interference or overlap with other channels, which can reduce your Wi-Fi speed and quality.
Wi-Fi interference is any wireless signal that does not belong to your Wi-Fi router(s) and degrades the overall performance of your Wi-Fi network by slowing down, high latency, frequent disconnections and reconnects, and even the inability to connect to the Wi-Fi network at all.
You need to understand the Wi-Fi landscape in your environment and choose an efficient channel for a router. We can use analyzer or scanner apps to do it for us by scanning the environment and give a pictorial view of which channel is in used. You will then take a graphical representation of everything in that network, quickly identify sources on interference.
Technically, there are two kind of WiFi interference Co-Channel Interference and Adjacent Channel Interference.
You can find the channel interferences by WiFi analyzer tools:
Now that you know the interference and channel concepts, you can use a WiFi-Analyzer tool to find the proper channel for your router. No need to worry, it’s really easy and doesn’t take much of your time just check the interference around your router and select a non-overlapping or least overlapping channel for your router, that’s all you have to do!
The best Wi-Fi channel for your router depends on several factors, such as the distance from your router, the type and number of devices connected, the layout of your home, and the presence of nearby networks or sources of interference.
To find the best Wi-Fi channel for your router, you can use a Wi-Fi scanner tool that analyzes the wireless signals in your area and shows you which channels are the most crowded. They also have an option to offer you the best channel, based on the environment’s interference level.
Alternatively, you can test each channel manually by changing it in your router settings and running a speed test to see how it affects your Wi-Fi speed and quality. You may need to repeat this process several times to find the optimal channel for your router.
There are many incorrect belief about WiFi channels. Let’s take a look at some of the more common ones:
For those looking to get the most out of their WiFi network, here are some advanced tips:
Beamforming is an advanced technology that can really help with your WiFi performance because it directs the signal to where you are instead of just blasting it out in every direction. Beamforming Explained: Read More
Usually, routers spread the waves in the same way and in all directions, this causes the waves that are radiated to the points without users to be wasted. With the advancement of technology in the field of wireless networks, a very interesting technology called beamforming was introduced, which could detect the location of users’ devices and send waves to those points. This increases the quality and strength of the received signal.
Definitely not. Equipment with this feature costs more, so it cannot be expected to be available on all routers.. First, you need to see if your router has this option. You can see in in the product characteristics or on the administrative panel of your router. Most of the new routers have these features, especially Wi-Fi 5, and Wi-Fi 6 routers.
It is likely that it is enabled already by default, but if you need to check and adjust it go to the administrative control panel and do the following:
By selecting inappropriate WiFi channel, you might face a number of issues which can likely degrade your internet experience. Some examples of what happens when you choose the wrong WiFi channel and how it impacts your network:
Wi-Fi Amplifiers, such as repeaters or extenders can be useful for amplify the signal into that one dead spot in your home. The key here is choosing wi-fi channels. Here, I am going to share with the method of how these devices work and also some ways that help you make your performance better on the network.
Wi-Fi amplifiers (Repeater, Extender) generally work by taking weak Wi-Fi signals from your router and amplify them into a stronger network, To increase the power of received signal radio and cover better. While these devices are useful, incorrect channel settings can lead to performance problems. Here’s how to optimize your WiFi channels when using these devices.
If you have a repeater which amplifies the WiFi signals, ensure both its and your main router channel is on same. This synchronization is must be need for communication between devices.
When setting up multiple extenders, avoid using overlapping channels. For instance, if your main router operates on channel 1, set your first extender to channel 6 as well, but if you need another extender, place it on channel 11 to avoid interference.
If possible, use dual-band amplifier (Repeater,Extender) that can operate on both the 2.4 GHz and 5 GHz bands simultaneously. These settings allow you to distribute the network traffic load more effectively. For example, you can connect your main devices to the 5GHz band for faster speeds while using the 2.4GHz band for less important devices.
One of the most important and very fine tasks for all applications in Wi-Fi networks is to find a suitable communication channel. You could get way more out of your wireless network though by picking the best channel to run your router on. With the help of this guide detailing these bands, some WI-Fi analyzer apps and a few general optimization tips — you can surely achieve that smooth Wi-fi experience with no drops while working at home or streaming videos or gaming.