From the hand of the developer farproc today we analyze WiFi Analyzer , a free Android application that will allow us to know our local and closest networks. One of its most outstanding functions is that it can recommend the best channel for our Wi-Fi network, whether we are using the 2.4GHz band or whether we are using the 5GHz band. This app is one of the best and most recommended applications to scan Wi-Fi networks, and check the coverage we get in different locations.
This WiFi Analyzer application is available in the official Android store, you can download it directly from here.
The most important thing to do before starting this application is to enable the geolocation services (GPS) of our terminal. In the latest versions of Android it is totally necessary to activate it, in order to scan the Wi-Fi networks around us, otherwise, the application will not work directly when it does not find any Wi-Fi network. If you have an older Android version, it will work without you having to do this. Therefore, if it does not work we have to go to Settings , Applications and look for WiFi Analyzer .
There we look for permissions and activate the location ones, and logically we enable the GPS services of our terminal.
Once the app is started, for the first time we will get a start screen like this.
First click on accept, and on the left in a yellow box, you can switch between 2.4GHz and 5GHz networks. Above all, in a red box you have all the options of WiFi Analyzer that are three:
- Represented by the three vertical points the general options.
- With a tool the Wi-Fi options.
- Finally, with the symbol of an eye, the graphics and tests that we can do.
This is the channel graph for 2.4 GHz networks.
Now it is the graphical turn of channels of the 5 GHz networks. Remember that the box to switch between one and the other disappears after a few seconds, but pressing it again executes the change.
This is the time to start with the general options.
We are going to cover these two elements Tools and Help , but we will start with the first one.
With Lan neighbors we obtain accurate data from our local network equipment, router, desktop PC and a smart plug. In addition, it provides its MAC addresses and the manufacturer. As for OI lookup, if we put the address of a device it will give us information about it. In this case the chosen one was a PC and he comments that he has a Gigabyte motherboard which is correct.
The other section is Help, which you can even refer to the developer’s website for more detailed information.
In the next section represented by the icon of a tool we have the options of the WiFi Analyzer app.
Here we can choose and edit the channels you want the Wi-Fi scan to do. Let’s take the 2.4 GHz network as an example.
In this section we select all, none or those we want. I remind you that we could also do the same with the channels in the 5 GHz band and customize the list to your liking.
Now on the main screen, the “eye” symbol, we can see a Time Graph showing the variation of the signal strength.
Also in the eye icon it is time for the Channel Score . Here the channels of the nearby networks will be analyzed and he will recommend the ones you see best. These are the results for a 2.4 GHz network.
In that network channel 1 is being used and we would recommend using channel 12, 13 or 14. Where is “Network”, if we press, we can change networks, in this case we are now going to choose one in the 5 GHz band.
These are the results and recommendations that WiFi Analyzer makes us for that 5 GHz network.
The next section of the main menu where the eye icon is included and that we are going to discuss next is AP List .
In this section we see all available Wi-fi networks both 2.4 GHz and 5 GHz. In addition, it offers channel, encryption, MAC, signal strength and more. The last section to deal with is ” Signal meter “, also as an Eye symbol.
For this, we choose a network and the less dB it has, the better it will be. Green is where we will have the best signal.
Finally, as a curiosity, you can activate the sound, the more it beeps the better signal it has. As you have seen, it is a really complete application and it works very well, any wireless network administrator should have this application installed on their smartphone to do coverage tests.