Wifi Analyzer is a handy Android application which helps you to choose a better channel for your wireless router. The screenshot to the right shows how channels 9 and 10 are occupied by a couple of wireless network fighting over the same frequency, while my network (the red one) lives comfortably on channel 1.
Wifi analyzer offers several views, including a simple "channel rating" screen with no graph, if you just want to quickly figure out what's the best channel for you. Install "Wifi Analyzer" on your android phone and run it! Switch to "channel graph" view to see the visualized graph.
You can use the "channel rating" view! Press "MENU" key, "View", "Channel rating", you'll see a list of ratings of all channels. Press "MENU" again, "Set my AP", choose your router by name and MAC address, you can see the rating of yours. Higher rating means better connection quality.
A beautiful app, and free, just scan the following QR code:
[tags]802.11,analyzer,ssid,wifi analyzer,channel,wifi channel,wlan[/tags]