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