I need to see the channels used by all Wi-Fi networks in range in order to improve my Wi-Fi connection by selecting the channel to be used by my modem (a procedure related to the 'freebox' modem).

In Windows there is Vistumbler (that I know of).

What would be the equivalent in Ubuntu?

Edits after answers/comments:

• The name of my wireless is registered as eth1 (not as wlan#) - as confirmed after comments and chats

  
  



• What I want is a program that would display all wireless networks in range (which any network app does) and the channel used by each of them, like Vistumbler does:

  
  

  

  
  



• I have an answer that seems satisfactory for now (wicd)- but please post more if there are other similar apps.