What is the recommended temperature range for operating the Xfi Pod?

I'd like to use the pod to get more coverage in my yard, but my house is brick and the signal drops dramatically once it has to be sent through the bricks. I was thinking that I could mount the pod on an extension cord in my attic right above the brick wall and that may provide enough of a space for the signal to reach the yard. My concern is that the attic can get fairly hot (Houston, Tx). Will the heat in the attic kill the pod or should that be fine?