Radar Tilt Angle Calculator.
This iOS application will help the pilot determine the correct radar antenna tilt angle.
If you experience problems with this app, please use iOS 8.3 or higher.
If you receive the message "Untrusted Enterprise Developer":
In iOS 9.2+, go to Settings - General - Device Management - tap on your Profile - tap on Trust button.
In iOS 9.1 and lower, go to Settings - General - Profiles - tap on your Profile - tap on Trust button.