Introduction: Principles of wireless network interfaces

A good wireless network adapter is essential for wireless Internet access. You should know its functions. But do you know what the principle of wireless network interfaces look like? In fact, it is very simple. Let's take a look at the next article and you will understand it.

Principle of wireless network adapter:

The principle of wireless network card is very simple, it is a kind of UIM or SIM card integrated into a hardware device similar to a traditional cat, that is to say, we use wireless network card and the previous through telephone lines and CAT Internet is the same, all need dial-up, but the past cat is replaced by today's wireless network card, the past telephone line is replaced by mobile phone UIM and SIM card. When we want to access the internet, let the laptop use this wireless network card to make it clear, that is, to act as a cat) to connect to the internet.

Because the principle of wireless network card is similar to dialing through telephone lines and cats, because mobile phones have inherent advantages in wireless technology, we can make mobile phone calls while walking, and mobile phone signals are also available in most regions, so as long as the phone has a signal, you can use the wireless network card to dial up the Internet. Other devices such as wireless access and wireless authentication do not need to be built by users. These hardware is purchased and set up by the Telecommunications Department.

The function of a wireless network adapter is equivalent to a wired modem. It can connect to the Internet by using the SIM card of a mobile phone wherever a wireless phone signal is covered. In China, its support network is China Mobile's GPRS and China Unicom's WCDMA and China Telecom's CDMA 1X.

TIPS:
The principle of Wireless LAN-Wireless LAN is a way for our users to establish Wireless Access Devices and wireless authentication systems. We receive and send wireless signals from NICs by purchasing a wireless router or AP device.