Radio Signals: What happens if there's a hill in the way?

Let us understand what happens if you have a hill or mountain in the way of your radio signal because I recently published a video showing you what happens if you have a slope going towards the target! This is the other way around. We can calculate the angle between you and the hill and then work out the losses. 73. Callum.
Previous video: https://youtu.be/JZFuOzKY8gg