This calculator determines the angle of inclination (downtilt) of an antenna based on the height of the transmitting antenna, the height of the remote antenna and the distance between them. It helps to precisely adjust the angle to improve coverage and reduce interference.
Designed for RF engineers, tower installers and network technicians, this tool makes it easy to tune antennas for optimal coverage performance.
Formula
Angle = atan((Hb – Hr) / Distance)
Explanation of the formula
- Hb corresponds to the height of the base antenna (in meters).
- Hr corresponds to the height of the remote antenna (in meters).
- Distance is the horizontal separation between antennas (in meters).
- The arctangent (atan) function calculates the tilt angle needed to align the antenna beam.
Calculation of antenna inclination for a height of 50 m and distance of 2 km
Entrance : Hb = 50 m, Hr = 5 m, Distance = 2000 m
Output : Angle ≈ 1.29°
Benefits and uses
- Allows you to optimize cellular coverage and signal reception.
- Reduces interference between neighboring cells.
- Useful for planning 4G, 5G and outdoor Wi-Fi sites.
- Essential tool for telecom engineers and antenna installers.