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Antenna Downtilt and Coverage Calculator

The Antenna Downtilt and Coverage Calculator (aka Antenna Tilt Angle Calculator) is used to determine the approximate downward angle, measured in degrees, which the transmitting antenna is to be positioned for optimal signal strength and coverage. It also provides, given a beamwidth, the inner and outer radii of beam's coverage. 

*Results of this calculation are to be used simply as a guide and represent a first order approximation only.

Transmitter Height:
Receiver Height:
Beamwidth (deg):

Result:

Downtilt Angle:
Inner Coverage Radius:
Outer Coverage Radius:

Antenna downtilt calculations are necessary in many common applications requiring the use of directional RF antennas including cellular networks, distributed antennas systems (DAS), antenna base stations, remote antenna sites, Land Mobile Radio (LMR) applications and many others.

Prefix Symbol Value
Tera 'T' 1012
Giga 'G' 109
Mega 'M' 106
kilo 'k' 103
Prefix Symbol Value
pico 'p' 10-12
nano 'n' 10-9
micro 'u' 10-6
milli 'm' 10-3