Hotspot AP is the so-called mobile phone wlan hotspot, which is to share the Internet with other devices with wlan function. The handheld device can be used as a wireless router to broadcast the wireless network to other devices with WLAN capabilities. The handheld device will use its own data connection to perform this function.
Features(Recommended learning:PHP video tutorial)
wlan is simply a wireless LAN. With wireless LAN flexibility and mobility, simple point-to-point technology, the infrastructure network provides distributed data connections and roaming, equivalent functions to wired LAN, but without the limitations of cables, an effective extension of the effective LAN, your mobile phone can To connect to the Internet, use your mobile phone as a tool to access the Internet. At the same time, your mobile phone's wifi is also a wireless access point, emitting wireless signals, and other devices can access the Internet after entering their passwords to connect.
AP's 2.4G
The 2.4G WIFI signal has a slightly longer wavelength and can be covered by many products if it is blocked by multiple walls, ensuring a certain level of coverage. Signal strength. However, in addition to the quality of the signal, wireless data transmission also depends on the support of the channel. The inherently flawed channel division of 2.4G has been criticized, and the current large-scale use of wireless broadband modems by telecommunications and other access providers has also made the already limited 2.4G channels more and more crowded.
What’s even more depressing is that WIFI is not the only one using the 2.4G frequency band. Peripherals such as cordless phones, wireless keyboards and mice, and even microwave ovens have to join in. Therefore, it is inevitable to encounter poor WIFI performance and stability every day.
AP's 5G
5G frequency is higher than 2.4G and can provide data transmission bandwidth several times higher than the 2.4G frequency band, but the short wavelength leads to The penetration is much weaker than 2.4G, so it will be more difficult to rely on a single transmission point for 5G coverage. Moreover, the cost is higher than that of 2.4G frequency band equipment, and the current usage is not large, so it is a blessing in disguise that there is rarely channel occupancy in the 5G frequency band.
For more PHP-related technical articles, please visit thePHP Graphic Tutorialcolumn to learn!
The above is the detailed content of What is the difference between hotspot AP frequency bands?. For more information, please follow other related articles on the PHP Chinese website!