Definition:

Radio channels are the slight variation in frequencies that electromagnetic radio waves are sent through the air. Cellular phones and other wireless devices such as laptops use these channels to send information. The most common ITGS aspect of radio channels would be in reference to the frequencies at which wireless routers broadcast their signals to provide wireless Internet access.

Details:

Although the frequencies at which cellular phones are pretty much set, you may view and change what radio channel your router broadcasts its frequencies at. You can do this by logging into your routers settings through a browser. You may find the code to get into your router through the manual or by searching online.

All routers broadcast at the main frequencies of 2.4 GHz, 5.4 GHz and 5.7 GHz. However, you can change the channel at which your router broadcasts these frequencies. By default, most router broadcasts its signals from channel 6. If you notice that your wireless connection is particularly weak, it might be due to interference on that frequency due to other routers or similar frequencies traveling through the air. If this is the issue, then changing your router's broadcast signal to other channels may solve the problem. This allows your wireless signal to avoid the previous interferences that your wifi encountered.

Related Links:

How Stuff Works: Building A Wireless Network