How do you locate the german camps in north africa? It's not in the instructions for the Wii version. Thanks

Continue to fly inland. Sooner you should hear what sounds like morris code. On the right of the screen you will see a bar - this is the strength of the signal - turn and fly in direction that gets the strongest signal

Is it stronger when the bar gets longer?

Yes the bottom bar seems to be direction and the top bar for closeness.

The fuller the bars the more correct you are.