Radio Wave Propagation Loss Calculator

How to Use This Calculator

1. Enter the frequency of the radio wave in MHz (Megahertz)
2. Enter the distance between the transmitter and receiver in kilometers (km)
3. Click the "Calculate" button to compute the path loss
4. The result will be displayed in decibels (dB)

Understanding Path Loss

Path loss is the reduction in signal power as radio waves travel through space. It occurs due to various factors including:

• Spreading of the wavefront
• Atmospheric absorption
• Obstructions like buildings and terrain

This calculator uses the free space path loss formula, which assumes an ideal environment with no obstructions. In real-world scenarios, additional path loss may occur.

Example

For a radio wave with a frequency of 100 MHz and a distance of 10 km, the path loss would be approximately 187.55 dB.