Do you ever have that moment where you step back and think about how something you use every day actually works? More specifically have you ever wondered how the heck computers actually communicate wirelessly? Show Well, that's exactly the question we're going to be tackling in today's podcast. What Is WiFi? See also: How to Boost Your WiFi Signal (Part 1) WiFi works off of the same principal as other wireless devices - it uses radio frequencies to send signals between devices. The radio frequencies are completely different say from walky talkies, car radios, cell phones, and weather radios. For example your car stereo receives frequencies in Kilohertz and Megahertz range (AM and FM stations), and WiFi transmits and receives data in the Gigahertz range. To break it down even further, Hertz (Hz) is simply a unit of frequency. Let's say you're standing on a pier watching waves come in. As you look down at the waves you can see the crest of each wave roll on by. If you counted how many seconds between each wave crest this would be the frequency of the waves. So if the time between each crest was 1 second that would meant the wave frequency was 1 hertz or one cycle per second. Comparing sea waves to Mhz and Ghz, these waves are moving at 1 million and 1 billion cycles per second in the air! And to receive the information found in these waves, your radio receiver needs to be set to receive waves of a certain frequency. For WiFi this frequency happens to be 2.4Ghz and 5Ghz. These waves are very similar to the frequency found in your microwave! Your microwave uses 2.450Ghz to heat up food and your router uses 2.412 GHz to 2.472 GHz to transmit your data over WiFi. This is why some people with old or faulty microwaves experience a problem with their WiFi signal when they try to make popcorn. Just to clear up a popular misconception: These microwaves are non-ionizing radiation. That means that they do not cause cancer. That’s right kids, microwaves will not make you radioactive and glow in the dark! >>Continue reading on QuickAndDirtyTips.com ABOUT THE AUTHOR(S) Eric Escobar is a professional computer hacker and host of the Tech Talker podcast on Quick and Dirty Tips.
What is a network that uses radio signals?A radio access network (RAN) is a major component of a wireless telecommunications system that connects individual devices to other parts of a network through a radio link. The RAN links user equipment, such as a cellphone, computer or any remotely controlled machine, over a fiber or wireless backhaul connection.
Is WiWiFi works off of the same principal as other wireless devices - it uses radio frequencies to send signals between devices. The radio frequencies are completely different say from walky talkies, car radios, cell phones, and weather radios.
What type of network is WiWi-Fi is a wireless networking technology that allows devices such as computers (laptops and desktops), mobile devices (smart phones and wearables), and other equipment (printers and video cameras) to interface with the Internet.
Which network type uses radio signals WiWireless Local Area Network (WLAN)
A wireless LAN (WLAN) is a LAN that uses radio signals (WiFi) to connect computers instead of cables. At the centre of the WLAN is a wireless switch or router - a small box with one or two antennas sticking out the back - used for sending and receiving data to the computers.
|
