First of all, 5Ghz frequency resources are very rich, a channel accounts for 4 channels (a bit contradictory), that is, 149, 153 only these two channels are used, the middle channel is not expressed, or let these two channels use. Therefore, there is almost no interference between channels (except for many devices and large data exchange volume). In addition, the domestic provisions of the available 5G channels only 149, 153, 157, 161, 165 of these 5 (civilian), generally around the 5ghz penetration is poor, basically through a wall after the signal, before the use of WirelessMon scan there is a surrounding channel, in mind on the line. In addition, in fact, the router can support more than these channels, such as brush other firmware can also support 36-64, 100-144 channels, so that the channel can be used more and not easy to interfere with others.
Secondly, you should know what channel to support when you choose the terminal device, as for the popularity of the computer mobile phone, I want to throw a pot to you, you understand it, USB1.1, USB2.0, USB3.0, are USB