Dec 03, 2010 - Ralf Andrae today announces SatFinder 1.2 for iPhone 4/3GS, an update to his app that makes it possible to quickly calibrate any TV satellite antenna in four easy steps: 1. Set the height and width of the satellite antenna. 2. Choose a TV satellite. 3. Test if there is a direct line of sight to the satellite. 4. Measure and set the azimuth and elevation. SatFinder employs the device's built-in GPS, compass, accelerometer, and video camera. The app is compatible only with iPhone 4 or iPhone 3GS.