Enter the height of the radio tower (m) into the Radio Distance Calculator. The calculator will evaluate and display the Radio Distance. 

Radio Distance Formula

The following formula is used to calculate the Radio Distance. 

RD = 3.569*SQRT(H)
  • Where RD is the Radio Distance (km)
  • H is the height of the radio tower (m) 

To calculate the radio distance, multiply the square root of the radio tower height by 3.569.

How to Calculate Radio Distance?

The following example problems outline how to calculate Radio Distance.

Example Problem #1:

  1. First, determine the height of the radio tower (m).
    • The height of the radio tower (m) is given as: 150.
  2. Finally, calculate the Radio Distance using the equation above: 

RD = 3.569*SQRT(H)

The values given above are inserted into the equation below and the solution is calculated:

RD = 3.569*SQRT(150) = 43.71 (km)

FAQ

What factors can affect the accuracy of the Radio Distance calculation?

The accuracy of the Radio Distance calculation can be affected by several factors including atmospheric conditions, the presence of obstacles like buildings or trees, the frequency of the radio signal, and the quality of the radio equipment used.

Can the Radio Distance formula be used for any type of radio communication?

While the Radio Distance formula provides a basic estimate for line-of-sight communication, its applicability may vary with different types of radio communication such as satellite, cellular, or shortwave radio, which may require more complex calculations considering additional variables.

How can I increase the radio distance of my communication system?

To increase the radio distance, you can consider several approaches such as increasing the height of the radio tower, using more powerful transmitters, optimizing the antenna design, or utilizing repeaters to extend the signal range. Additionally, choosing frequencies that are less susceptible to atmospheric attenuation can also help in increasing the effective radio distance.