RF Path-Radio Link Calculator

RF Path Profiler App provides professional-grade RF Path, RLOS, Fresnel Zone and Path Loss analysis using the Longley-Rice (ITM) radio propagation model. Designed for telecom engineers, RF planners, broadcasters, and wireless network designers, the app delivers highly accurate point-to-point link evaluation for frequencies ranging from 20 MHz to 20 GHz. Whether you're planning microwave links, Wi-Fi backhauls, LOS radio links, or long-distance wireless communication, this app helps predict terrain impact, path loss, and link feasibility with exceptional accuracy. ⭐ Key Features 🔹 ITM Longley-Rice Model (20 MHz – 20 GHz) • Industry-standard Irregular Terrain Model • Accurate diffraction, scatter & line-of-sight predictions • Supports multiple reliability × confidence combinations 🔹 RLOS (Radio Line-of-Sight) Analysis • Geometric LOS check • Earth-curvature LOS (k-factor adjustable) • 60% first Fresnel zone clearance • Minimum clearance at obstruction points • Required tower height increase suggestions 🔹 Terrain Elevation Profiling • High-resolution elevation sampling • Plots include terrain, curvature, LOS and Fresnel zones • Quick zoomable charts with sharing options 🔹 Path Loss & Link Budget • Path loss predictions • EIRP, RSSI, SNR and link margin calculations • Clear pass/warning/fail indicators 🔹 Clean & Intuitive Interface • Fast computation • Simple map-based TX/RX selection • PDF report export • Plot image sharing & saving ⭐ Ideal For • Wireless network planners • Microwave / LOS link engineers • UAV/Drone communication designers • Amateur radio operators • Students learning RF & propagation models