These types of networks can be maintained over a large area, such as cities or countries, by the way of multiple satellite systems or aerial sites looked after by an ISP. These systems are considered as a 2G which means 2nd Generation systems.

Following is the table indicating the range which the wireless data networks can handle:

Metres Network
0-10 Personal Area Network
0-100 Local Area Network
0-10000 Wide Area Network

Security

The following are three kinds of ways for which security is available when it comes to wireless: