How does WiFi technology work? Advantages and disadvantages of its use ~ TecnoBlog

Wireless (Wireless loyalty) is a wireless network protocol used by devices to communicate no direct cable connections. This technology represents a type of wireless local area network protocol (WLAN) standards-based IEEE 802.11.

Networks WLAN allow computers to connect through radio connections share data and access external networks.
You can connect multiple activated devices that are within range of the WLAN.

In a nutshell, WiFi is the Internet access from a wireless compatible device like a phone, tablet or laptop. Most modern devices support WiFi allowing you to join a network and thus access the Internet and share resources.

Wireless loyalty

How does WiFi technology work?

It’s like listen to the radio, but in a way bidirectional. Instead of just receiving sound like we do with AM wavelengths (Amplitude modulation) of M (Frequency modulation), WiFi also allows you to send data, such as email or social media post.

WiFi sends data over radio waves quickly and reliably so that whatever you are trying to do, the video you want to stream or the game you are going to play, runs seamlessly for you.

Wi-Fi works on 2.4 GHz and 5 GHz radio frequencies (if you see a wireless network with the number 5 at the end). Think of these numbers as setting your car stereo to 91.0 FM to listen to your favorite music station. Except you don’t really need to configure anything. Your WiFi router decides which radio station to place your device on so that you can watch YouTube videos on your smartphone or make a video call while you move around your house.


2.4 GHz

5 GHz


14 stacked channels

25 channels without overlap


No more interference

Less interference

Maximum speed

Less connection speed

More connection speed

Network scope

Superior range

Lower rank


IEEE 802.11b, 802.11g, 802.11n
(B, G and N)

IEEE 802.11a, 802.11n, 802.11ac
(A, N, CA)

Wi-Fi 5 GHz is most optimal for devices that need higher connection speed while that of 2.4 GHz will be ideal for devices where the the range or coverage is greater.

There may be multiple WiFi networks on the same frequencies, so you can see your neighbors’ networks when you try to connect your device.

Your WiFi network can slow down at times. If you have multiple Wi-Fi networks operating at the same time in the same area, they all use the same frequency ranges.

Likewise, some parts of your house may have a better WiFi signal. It depends on the router. A single router is like a light bulb in that a light bulb has limited light range and a router has limited signal range.

Placing the router in the right location can help you dramatically improve your signal range. Try to place it in the center of the area you want to cover and try to make it an obstacle free area to get the maximum range.

If that is not enough, you can choose to purchase a WiFi repeater, a CPL (Power Line Communication) or a Mesh system to improve the coverage of your network throughout the house.

Advantages and disadvantages of wireless networks

One of the main advantages is the ease with which they allow people to share information.

The most important advantage of using WiFi is the ability to use the internet connection to connect to various services. These services include television, broadband internet access, Bluetooth and VoIP, among others.


  • AccessibilityWireless technology does not require cables so that users can communicate even when they are on the move.
  • Flexibility– Allows users to perform their work productively even when away from their desks.
  • Profitability– Wireless networks are economical solutions because they are easy to install and inexpensive.
  • Greater opportunities: with its use, companies can introduce new products and / or services to the market. Many train stations, cafes, airport and hotel waiting rooms have installed WiFi services so that you can connect your devices while on the go.


  • Security– WiFi networks are more prone to attacks from unauthorized users. As much as possible, avoid using these types of connections in public places.
  • Speed– In most cases, the transmission speed of wireless networks (typically 1 to 54 Mbps) is less efficient than that of wired networks (100 Mbps to several Gbps).
  • Blanket: in some buildings “black spots” may appear where the signal is weak or no signal.