Enter a height for each antenna and click "Calculate". This will be the distance at which
these two antennas still have line of sight. It does not take into account the loss of power
over the given distance, there is a calculator for that farther down the page.
Convert Watts to dBm or dBm to Watts
Enter the power value, select the expected power type and click "Calculate".
Line of sight signal path loss for VHF