802.11n and Wi-Fi Router Range
In general, wireless routers currently offering the best Wi-Fi signal range, however, are 802.11n (sometimes called "wireless N") units. Where standard 802.11b and 802.11g routers contain just one Wi-Fi radio and antenna, wireless N routers contain two or three radios specifically designed to maximize Wi-Fi range. Note that the actual range and performance of any wireless router varies substantially depending on conditions of the environment such as obstructions and radio interference.Increasing Wi-Fi Range - Do It Yourself
The standard antennas shipped wih wireless routers work omnidirectionally. Omnidirectional antennas distribute their signal equally in all directions. These antennas provide more uniform coverage in a radius, but they also limit the signal's reach in any particular direction.
Some routers support replacement of their standard antennas with upgraded "aftermarket" ones. Many aftermarket Wi-Fi antennas work directionally, meaning their radio signals can be focused in a specific direction. All other things being equal, replacing the omnidirectional antenna on a wireless router with a directional one will increase its range.
Router Wi-Fi Range Only One Factor to Consider
Wi-Fi range is just one of several factors to consider when choosing a wireless router. For example, the reach of a wireless network can also be increased by installing wireless range extender products, or by upgrading a Wi-Fi client instead of the router.Finally, even those routers with lesser range may service your residence quite well. If your Wi-Fi devices are located near to each other, with few walls and other obstructions in the vicinity, you likely need not seek out a router with the best Wi-Fi range.
