ok, this may sound like a stupid question, but I have read many posts regarding how to best obtain the dish angle when chasing your satellite of choice. Many applaud the use of an inclinometer, or even a smart phone app to help set the dish elevation angle. My question is, can I place a straight-edge across the face of my dish, then sit my smartphone complete with a spirit level app on top, that reads the angle of my sat dish, and set the angle from this ? If I know the elevation of the area I am at, would this not be an easy way of obtaining the correct elevation angle before tackling the azimuth ??