Is there a way to restrict Wifi search?

I live in a normal street. I connect to my house Wi-fi access. My Blackberry scans and sees dozens of other houses wifi, all of varying signal strengths. Surely this constant scanning eats a little battery life?

Is there a way I can make my Blackberry only look for the one or two signals I want and ignore scanning for all the rest?

It only scans until it's connected, unless you go to wifi settings then is scans again.

Posted from my awesome Q10

It's like a quantum cat: if you don't look at it it's probably OK.