Airport Extreme N Router direction?

[netdog]

I have a poor link from one ExtremeN router to another in the house. They barely have a line of sight, but the distant router shows as a pretty poor link. Do these routers have a favored direction in which their ability to broadcast and receive is stronger?

 

[mklos]

Whats inbetween these routers? In other words, whats in the walls? Things like concrete walls will hurt a signal among other things. Wireless is very funny with it comes to a signal. I've seen things that are outside hurt a signal before and its things that are out of your control.

 

[skunk]

Allegedly they have multiple aerials, so they should be pretty much omnidirectional. Like he said, check for any weird walls, Faraday cages, metal staircases, etc, between one and the other.