WI-FI is a standard for WLAN. The maximum WLAN (plus antenna) can go to 5KM... Not WIFI can compare...
note! IEEE 8021B and 8021B are two different standards! ! ! IEEE802.11a standard is the follow-up standard of IEEE802.11b, its original intention is to replace 802.11b standard, however, does not need the license to work in 2.4GHz frequency band, this frequency band belongs to the special band such as industry, education, medical treatment, it is open, Working in the 5.15-8.825GHz band requires a license.
WLAN is an abbreviation of Wireless Local Area Network, which refers to the application of wireless communication technology to interconnect computer devices to form a network system that can communicate with each other and achieve resource sharing. The essence of the wireless LAN is that it no longer uses a communication cable to connect the computer to the network. Instead, it is connected wirelessly, so that the construction of the network and the mobility of the terminal are more flexible.
WLAN communication systems are generally used in the same building as an alternative to wired LANs. WLAN uses ISM (Industrial, Scientific, Medical) radio broadcast band communications. The WLAN's 802.11a standard uses the 5 GHz band and supports a maximum speed of 54 Mbps, while the 802.11b and 802.11g standards use the 2.4 GHz band, which supports speeds of 11 Mbps and 54 Mbps, respectively.
Wi-Fi/WirelessFidelity, the wireless fidelity technology, is the same as Bluetooth technology, which belongs to short-range wireless technologies used in offices and homes. The technology uses a frequency band around 2.4 GHz, which is currently a wireless band that is not licensed. There are two standards that can be used at present, namely IEEE802.11a and IEEE802.11b. This technology is favored by manufacturers because of its own advantages.
WI-FI is a "non-profit organization" with a strong interest leverage and whip color that a few American information companies hold. They have developed their own WIFI standards WEP, WPA.
Wi-Fi (short for wireless fidelity) is a kind of commercial authentication. Wi-Fi certified products conform to the IEEE 802.11b wireless network specification. It is the most widely used WLAN standard. 2.4GHz. The IEEE 802.11b wireless network specification is a variant of the IEEE 802.11 network specification, with a maximum bandwidth of 11 Mbps. With weak or disturbed signals, the bandwidth can be adjusted to 5.5 Mbps, 2 Mbps, and 1 Mbps, and the bandwidth can be adjusted automatically. Effective protection The stability and reliability of the network.
Wi-Fi logo Since the implementation of IEEE 802.11b, the wireless network has made great progress, so products based on this technology are gradually getting more and more, and it is very necessary to solve the compatibility problem among various manufacturers' products. Because the IEEE is not responsible for testing the compatibility of IEEE 802.11b wireless products, this work will be performed by the non-profit organization composed of the manufacturers: the Wi-Fi Alliance. This alliance includes the most important wireless LAN equipment manufacturers, such as Intel, Broadcom, as well as the familiar Chinese manufacturers ASUS, BenQ and so on. All products that pass the WiFi Alliance Compatibility Test are granted the "Wi-Fi CERTIFIED" mark. Therefore, when purchasing an IEEE 802.11b wireless product, it is best to purchase a Wi-Fi tagged product to ensure compatibility between products.
The official name of Wi-Fi (Wireless Fidelity) is "IEEE802.11b." Like Bluetooth, it belongs to the short-range wireless technology used in offices and homes. Although in terms of data security, this technology is worse than Bluetooth technology, it is slightly better in terms of radio coverage. Wi-Fi coverage can be as much as 300 feet (90 meters). Needless to say, the office can be used in smaller buildings.
note! IEEE 8021B and 8021B are two different standards! ! ! IEEE802.11a standard is the follow-up standard of IEEE802.11b, its original intention is to replace 802.11b standard, however, does not need the license to work in 2.4GHz frequency band, this frequency band belongs to the special band such as industry, education, medical treatment, it is open, Working in the 5.15-8.825GHz band requires a license.
WLAN is an abbreviation of Wireless Local Area Network, which refers to the application of wireless communication technology to interconnect computer devices to form a network system that can communicate with each other and achieve resource sharing. The essence of the wireless LAN is that it no longer uses a communication cable to connect the computer to the network. Instead, it is connected wirelessly, so that the construction of the network and the mobility of the terminal are more flexible.
WLAN communication systems are generally used in the same building as an alternative to wired LANs. WLAN uses ISM (Industrial, Scientific, Medical) radio broadcast band communications. The WLAN's 802.11a standard uses the 5 GHz band and supports a maximum speed of 54 Mbps, while the 802.11b and 802.11g standards use the 2.4 GHz band, which supports speeds of 11 Mbps and 54 Mbps, respectively.
Wi-Fi/WirelessFidelity, the wireless fidelity technology, is the same as Bluetooth technology, which belongs to short-range wireless technologies used in offices and homes. The technology uses a frequency band around 2.4 GHz, which is currently a wireless band that is not licensed. There are two standards that can be used at present, namely IEEE802.11a and IEEE802.11b. This technology is favored by manufacturers because of its own advantages.
WI-FI is a "non-profit organization" with a strong interest leverage and whip color that a few American information companies hold. They have developed their own WIFI standards WEP, WPA.
Wi-Fi (short for wireless fidelity) is a kind of commercial authentication. Wi-Fi certified products conform to the IEEE 802.11b wireless network specification. It is the most widely used WLAN standard. 2.4GHz. The IEEE 802.11b wireless network specification is a variant of the IEEE 802.11 network specification, with a maximum bandwidth of 11 Mbps. With weak or disturbed signals, the bandwidth can be adjusted to 5.5 Mbps, 2 Mbps, and 1 Mbps, and the bandwidth can be adjusted automatically. Effective protection The stability and reliability of the network.
Wi-Fi logo Since the implementation of IEEE 802.11b, the wireless network has made great progress, so products based on this technology are gradually getting more and more, and it is very necessary to solve the compatibility problem among various manufacturers' products. Because the IEEE is not responsible for testing the compatibility of IEEE 802.11b wireless products, this work will be performed by the non-profit organization composed of the manufacturers: the Wi-Fi Alliance. This alliance includes the most important wireless LAN equipment manufacturers, such as Intel, Broadcom, as well as the familiar Chinese manufacturers ASUS, BenQ and so on. All products that pass the WiFi Alliance Compatibility Test are granted the "Wi-Fi CERTIFIED" mark. Therefore, when purchasing an IEEE 802.11b wireless product, it is best to purchase a Wi-Fi tagged product to ensure compatibility between products.
The official name of Wi-Fi (Wireless Fidelity) is "IEEE802.11b." Like Bluetooth, it belongs to the short-range wireless technology used in offices and homes. Although in terms of data security, this technology is worse than Bluetooth technology, it is slightly better in terms of radio coverage. Wi-Fi coverage can be as much as 300 feet (90 meters). Needless to say, the office can be used in smaller buildings.
Yellow Led Display,0.36 Inch Yellow Led Display,3 Digits Green Led Display,3 Digits Led Segment Display
Wuxi Ark Technology Electronic Co.,Ltd. , https://www.arkledcn.com