What is the difference between Bluetooth and WiFi?
Bluetooth and WiFi are wireless communication network standards. They all work in ism2 4GHz public frequency band.
The full name of WiFi is wireless fidelity, also known as 802.11b standard. Its biggest advantage is that it allows electronic devices to connect to the local area network and high transmission speed. It usually uses the 2.4G UHF ism video frequency band. The connection to the network is generally password protected and can be easily cracked by technical means.
2. The biggest advantage of WiFi is its high transmission speed, which can reach 11Mbps. In addition, its effective distance is also very long. At the same time, it is also compatible with various existing 802.11dsss devices.
3. Bluetooth ® ) It is a wireless technology standard, which can realize short-distance data exchange between fixed equipment, mobile equipment and building personal area network (using 2.4 ~ 2.485ghz ISM Band UHF radio wave).
4. The radio wave coverage of Bluetooth technology is very small, with a radius of only about 50 feet, about 15 meters, while the radius of WiFi can reach about 300 feet, about 90 meters. Needless to say, with the development of WiFi technology, some WiFi can cover the whole area
What is an antenna?
Several basic concepts of antenna antenna is the key energy conversion device of all equipment with wireless communication function. It is used to transmit and receive electromagnetic wave signals. It can be said that it is the gateway for electromagnetic waves to and from radio stations.
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