Choosing the best Wi-Fi channel

http://www.nirsoft.net/utils/wifi_information_view.html

Your PC must have a Wireless adapter in the PC or Laptop

Otherwise See my other Post

http://lozaelec.blogspot.com.au/2016/04/wifi-channel-scan-around-you-iphoneipad.html

https://play.google.com/store/apps/details?id=com.farproc.wifi.analyzer