There is a significant multitude of 802.11-based gadgets and paraphernalia out there, so it's only natural for other 802.11 networks to cause interference with your own network, especially if there's a congestion of such frequencies in one particular area. Then again, because devices of this variant all follow the same protocol, they are more likely to work together instead of against each other; i.e., two access points on the same frequency will tend to share channel capacity more often than not.
Similar to television channels, the 2.4 gigahertz WiFi signal range is separated into several smaller bands.
WiFi equipment that's available in most countries takes advantage of this fact by offering a collection of available bands to browse through.
Configuring the WiFi channel number correctly is one particular method of preventing the annoyances of wireless obstruction and congestion.
Furthermore, the default channel of six seems to be the standard band for many of the wireless devices shipped into the United States.
At any rate, whenever you encounter interference from any of the appliances mentioned above plus the wireless devices of your neighbors, you should attempt to change the channel to avoid it.
You must also remember that all WiFi gadgets connected to a network must utilize just one uniform channel in order to work.
In contrast to television channels, there are WiFi bands that tend to extend beyond each other.
To be more precise, channel one has the lowest frequency and each channel after it increases the frequency in increments.
As such, the further apart the channels are, the less likely it is for interference because the opportunity for overlap is also reduced.