UHF/VHF Line-of-Sight Calculator

This tool can help find locations allowing for line-of-sight communications such as UHF (70 centimeter) and VHF (2 meter) amateur radio, where line of sight, particularly obstructions, matters more than atmospheric propagation.

Start by entering an address or coordinates for each of the two locations, then drag the markers into position for more details.

Of course, the results here are only an estimate based on terrain. Real-world factors such as buildings and other obstacles may affect communication.

Transmitting Location

Receiving Location

Distance and Bearing

Distance: miles, kilometers
Horizon: miles, kilometers
The distance is further than the horizon. Successful contact is unlikely.

Ground Elevation, Transmitter: feet, meters
Ground Elevation, Receiver: feet, meters

Bearing: °,

Elevation Change