Yes, you need to know where to point the dish.
Somewhere there is a chart that tells you at what angle the sat. is at with respect to your lattitude. The dish should have a small gauge that measures the angle.
Set that first. now point it in the direction of the sat. (SW or SSW)
You may have to reset the signal meter after every adjustment. (movement)
Now adjust the direction in 1 degree increments until you get some signal.
Now just fine tweak. Oh and don't forget the big rock to hold it against the wind.
Alo you need a clear view. ( doesn't work thru trees.)
A compass will line you up east to west.