ATC SkyDecode vs Meridian Elevate

SkyDecode brings two things together for student pilots, aviation English learners, and aviation enthusiasts: a way to get familiar with ATC communications, and a real-time view of what's flying around the world. What you get ATC dialogues with synchronized text - Each ATC dialogue is paired with a synchronized text view, so you can follow along visually while you listen. - A natural way to pick up phraseology, callsign formats, and the flow of typical exchanges — without having to decode every word by ear. Real-time global flight tracking - A live flight map powered by adsb.fi, with sub-5-second refresh. - Tap any aircraft on the map to see its callsign, altitude, ground speed, heading, and squawk code. - Watch global air traffic move in real time, anywhere in the world. Built for focused use - A clean, dark, radar-inspired interface that's easy on the eyes during extended sessions. SkyDecode is an independent app and is not affiliated with any air traffic control authority or live ATC monitoring service. Terms of Service: https://www.tapwater.life/terms-of-use Privacy Policy: https://www.tapwater.life/privacy-policy

This application performs geometric line-of-sight (LoS) analysis between two elevated structures using a WGS-84 Earth ellipsoid model. It calculates the required Height Above Ellipsoid (HAE) along the straight-line path between two radio masts, accounting for Earth curvature using a mid-chord spherical approximation. Inputs: Mast A base elevation (HAE) and antenna height (AGL) Mast B base elevation (HAE) and antenna height (AGL) Geodesic distance between masts Interpolation position along the path Core computation: Linear interpolation between mast tip heights Earth curvature correction using: d(D − d) / (2Rₑ), where Rₑ = 6,378,137 m (WGS-84) Required HAE at any point along the path Outputs: Required line-of-sight height at selected distance Real-time interactive profile of Earth curvature, ground surface, and LoS chord Visual indication of relative position along the path The model is purely geometric and does not include terrain elevation data or atmospheric refraction. It is intended for engineering estimation of direct geometric visibility between fixed radio infrastructure points.