The bottom of the dish will be the first area shaded by an obstacle.
Bottom of dish 1.1M from ground.
Make 'baseline' the same height on tree, 1.1 meter from ground.
Find Tangent of satellite elevation. dishpointer.com** ( I used 34°)
Multiply
Tangent of elevation angle by baseline distance (bottom of dish to obstacle/tree)
Result is allowed height above the baseline.
Overall height = result + height of baseline above ground (1.1)
**According to dishpointer.com
Location
Latitude: 46.5000°
Longitude: 14.1794°
Thor 5/6 is at
Dish Elevation: 34.5°
Azimuth: 200.2°
My math: 34° sat elevation, 5 meter baseline distance to obstacle.
Tan(34°) = .6745
.6745 x 5 = 3.3725
Overall tree height without shading dish
3.3725 + 1.1 = 4.4725 M (From ground-if ground is level)
(BTW, what's correct to label a number in meters, M or m?
4.5 meter tall tree will just shade the bottom 0.0275 meters of the dish.
(about an inch)