12.5.1 Wireless & Cellular Data Connections

Learn how mobile devices access the Internet through wireless network connections.

Mobile devices are hardly useful without access to the Internet, that houses all the information we take advantage of daily.

Wireless Radios

There are several wireless radios installed in the common mobile device. It has one to transmit and receive data to and from mobile phone network towers. It has one for using Wi-Fi networks. It also has one for Bluetooth connections, and another for GPS satellite communication for navigational purposes.

It's important to know how to toggle Airplane Mode on your personal devices, because they disable specific communication signals typically made by mobile devices that can interfere with the airplane's communication signals.

Cellular Network Generations

*In order for a mobile device to properly connect to a cellular network, it needs information to update something called the preferred roaming list. This update can be triggered from the device's settings or by dialing a special code, usually *288.

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