GitHub - SarahRoseLives/InmarScope: The Multi-Channel SDR-First Inmarsat Decoder · GitHub
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SarahRoseLives
InmarScope
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InmarScope
Multi-protocol L-band satellite communications decoder for Windows.
Decodes Inmarsat Aero (Classic Aero, Aero-H/H+) and Inmarsat-C/EGC signals in real time using RTL-SDR, HackRF, or SDR++ server sources. Voice call recording, aircraft tracking, and message output in one application.
Windows Download: https://sarahsforge.dev/products/inmarscope
Features
Inmarsat Aero — 600/1200/8400 bps OQPSK signal decoding, voice AMBE decoding, ACARS/ADS-C/CPDLC message parsing
Inmarsat-C / EGC — 1200 bps BPSK decoding with EGC SafetyNet/FleetNet message output
Dual-SDR voice follow — dedicate a second RTL-SDR to automatically follow and record voice calls
Voice call recording — WAV and OGG Vorbis output, tagged with aircraft ICAO
Live spectrum & waterfall — real-time FFT with drag-to-place decoder placement
Embedded flight map — tracks aircraft positions on globe.airplanes.live via Microsoft Edge WebView2
SBS/BaseStation output — TCP server on port 30003 for virtual radar clients
JAERO-compatible output — JSON dump, text log, and UDP forwarding
Country blacklist — mute and skip recording for selected countries using ICAO address lookup
Building
Requires MSYS2/MinGW-w64 with the following:
pacman -S mingw-w64-x86_64-{cmake,ninja,gcc,glfw,rtl-sdr,hackrf,zstd,ogg,vorbis}
Additional dependencies vendored in third_party/:
Dear ImGui (docking branch)
ImPlot
jaero_dsp, mbelib, libacars, WebView2 SDK
Build:
mkdir build && cd build<br>cmake .. -G Ninja -DCMAKE_BUILD_TYPE=Release<br>ninja
License
See LICENSE.
About
The Multi-Channel SDR-First Inmarsat Decoder
sarahsforge.dev/products/inmarscope
Topics
aero
inmarsat
inmarsat-c
inmarsat-aero
Resources
Readme
License
GPL-3.0 license
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C++<br>98.2%
CMake<br>1.7%
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