How to Determine Your Wireless Channelby Dave Wilson
Microsoft Windows operating systems include several utilities and a service that are dedicated to supporting wireless network connectivity. The wireless network utilities provide most of the information needed for configuration and diagnostics through the Windows graphical user interface. However, when you need to know what channel the computer is using to connect to a wireless network, use the Windows Netsh command line utility to determine the channel in use.
Boot the Windows 7 computer and log in using the credentials of an account that has administrator access to the computer.
Click the "Start" menu on the taskbar, type "cmd" in the Search box and press "Enter."
Type "netsh wlan show interfaces" and press "Enter." The channel in use by the wireless network adapter will display in the command line output.