What is WiFi and what does WiFi mean?

WiFi means Wireless Fidelity. This term was created by a branding company, and it only became popular in its abbreviated form. It describes a technology for the creation of wireless local area networks of devices based on the IEEE 802.11 standards, which are maintained by the LAN / MAN Standards Committee of the Institute of Electrical and Electronics Engineers (IEEE) LAN / MAN Standards Committee, (IEEE 802).

The first version of the IEEE 802.11 standards was released in 1997, but its origin dates back to 1985 and the release of the ISM band for use without a license by the United States Federal Communications Commission. Today, multiple revisions of IEEE 802.11 standards are used, which is made possible by compatibility with previous versions of IEEE 802.11 hardware.

How does WiFi work?

Like traditional radio transistors, WiFi networks transmit information over the air using radio waves, which are a type of electromagnetic radiation with wavelengths in the electromagnetic spectrum longer than infrared light wireless wifi.

WiFi radio waves usually have the frequency of 2.4 gigahertz or 5.8 gigahertz. These two WiFi frequency bands are subdivided into multiple channels , each channel possibly being shared by many different networks.

When you download a file through a WiFi network, a device known as a wireless router first receives data from the Internet through its broadband Internet connection and then converts it into radio waves. The wireless router then emits the radio waves to the surrounding area, and the wireless device that initiated the download request captures them and decodes them.

Because WiFi depends on radio waves, WiFi networks can be interrupted by interference caused by other WiFi networks or by various electronic devices, including microwave ovens, cordless phones, refrigerators, televisions, transistor radios, or Bluetooth devices.

To ensure optimal Wi-Fi performance, network administrators often rely on Wi-Fi analyzers such as NetSpot to view, manage and resolve problems with Wi-Fi connections .

NetSpot can generate a complete visual map of WiFi networks, highlight areas of signal weakness and reveal possible causes of interference. In the current era of ubiquitous WiFi networks, a tool like NetSpot is indispensable even when establishing a basic WiFi home network .

Although NetSpot is used by professionals, it is also suitable for home users who do not have time to learn about the details of network administration and still want to enjoy the WiFi Speed they deserve and for which they have paid. NetSpot runs on any MacBook running macOS 10.10+ or ​​on any Windows 7/8/10 laptop.