Enter values for two of the three fields to calculate the missing radio parameter.
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Radio Coverage Formula
The following equation is used to calculate the coverage distance when it is the missing parameter.
CD = √(TP × AG)
- Where CD is the Coverage Distance (km)
- TP is the Transmitter Power (W)
- AG is the Antenna Gain (dBi)
To calculate the coverage distance, multiply the transmitter power by the antenna gain and then take the square root.
What is a Radio Coverage Calculator?
Definition:
A Radio Coverage Calculator is a tool that computes the missing radio parameter by using the known values of transmitter power, antenna gain, and coverage distance based on a simplified propagation formula.
How to Calculate Radio Coverage?
Example Problem:
The following example outlines the steps and information needed to compute one missing radio parameter.
First, decide which parameter to solve for—in this example, the coverage distance is unknown.
Next, input the transmitter power and antenna gain. For instance, assume a transmitter power of 100 W and an antenna gain of 16 dBi.
Finally, calculate the coverage distance using the formula above:
CD = √(TP × AG)
CD = √(100 × 16)
CD = √1600
CD = 40 km
FAQ
What factors can affect radio coverage?
Radio coverage can be influenced by several factors including transmitter power, antenna gain, frequency, terrain, obstacles, and environmental conditions. Interference and regulatory limits may also impact effective coverage.
Can this calculator be used for accurate real-world predictions?
This calculator provides a simplified estimation based on ideal conditions. Real-world radio propagation may require more detailed analysis and additional factors to predict accurately.
Why does one field need to be left empty?
Leaving one field empty allows the calculator to determine the missing value based on the other two inputs, ensuring that the computed result is consistent with the simplified formula.