The Application InfoParabolic guides you and tells you what to do to point the parabolic antenna.
First of all, enter the degrees of the satellite (for example Hot Bird 13 °) to which you want to point the parabolic antenna, then enter the coordinates (manually or by geolocation) of where you are and you're done, the app will calculate :
azimuth (indicates the horizontal rotation of the parabolic antenna)
elevation (indicates the vertical rotation of the parabolic antenna)
polarization (indicates the rotation of the LNB converter).