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# LinkSight

> Instant Line of Sight. Zero Guesswork. Verify point-to-point wireless viability with global SRTM topographic data on Android, straight from your pocket.

## Overview
LinkSight is a native Android mobile application designed for instant point-to-point microwave link planning and line-of-sight (LOS) analysis directly in the field. It uses global SRTM90m topography data to calculate terrain elevation profiles and Fresnel zone obstructions with sub-second latency.

## Key Features
- **Line of Sight (LOS) Analysis**: Instant terrain elevation profile calculations between two GPS coordinates using SRTM90m global data.
- **Fresnel Zone Clearance**: Real-time Fresnel zone calculation and obstruction detection across standard frequency presets (2.4 GHz, 5.8 GHz, 6.0 GHz, Sub-GHz 868/915 MHz) and arbitrary custom RF spectrum (100 MHz – 60 GHz).
- **Interactive Map & Mast Height Tuning**: Interactive GPS coordinate pin-dropping with dynamic antenna mast height (AGL) adjustments.
- **Client-Ready PDF Reports**: One-tap export of comprehensive engineering feasibility study reports with elevation charts, clearance verdicts, and company branding.
- **Cloud Topography Engine**: Millisecond profile downloads without requiring gigabytes of offline maps on the device.

## Target Users & Use Cases
- **WISP Operators**: Plan broadband point-to-point microwave links and verify tower heights before dispatching installation crews.
- **Meshtastic & LoRa Networks**: Design off-grid mesh networks and ensure sub-GHz signal paths through complex terrain.
- **UAV & Drone Pilots (BVLOS)**: Verify telemetry and video link line-of-sight across terrain obstacles.
- **RF & Telecom Engineers**: Custom frequency and mast height calculations for amateur radio, public safety, and proprietary wireless networks.

## Technical Specifications
- **Platform**: Android Native (Kotlin)
- **Elevation Data**: SRTM90m (Shuttle Radar Topography Mission, 90-meter global resolution)
- **Calculation Latency**: <250ms
- **Pricing**: Free tier (5 calculations/day, all frequency bands & custom inputs, no credit card required) & Pro tier (unlimited calculations, client-ready PDF exports, priority support).

## Links
- Website: https://linksightapp.com
- Google Play Store: https://play.google.com/store/apps/details?id=com.linksight.app
- Pricing: https://linksightapp.com/pricing
- Privacy Policy: https://linksightapp.com/privacy
- Account Deletion: https://linksightapp.com/account-deletion
- Developer: Jorge Muñoz Castillo (https://jorgemunoz.pro)