This 1-way path loss calculator uses the familiar Friis equation. It is applicable in the case of something like a transmitter broadcasting to a distant receiver. The transmission medium is assumed to be air in a line-of-site configuration.
The calculator originally on this page has been removed because of compatibility issues with outdated Microsoft OWC components. A 1-Way Path Loss Calculator is included in RF Cafe Calculator Workbook for FREE.
Equations obtained from Electronic Warfare and Radar Systems Engineering Handbook - see example.