gmdss

Decision support for maritime distress incidents: classifies the incident, names the responsible SAR authority, ranks nearest responders, and drafts a tailored packet per recipient, all behind an operator approval gate. Supplementary to GMDSS, never a replacement.

Anki flashcard decks for written examination question pools used for FCC commercial radio operator licensing.

SeaSentinel: An Intrusion Detection System (IDS) designed to enhance the security of GMDSS maritime communications, monitoring for unauthorized access and anomalies.

SignalK plugin: receive, log, and alert on DSC (VHF digital selective calling) calls — NMEA 0183 $CDDSC/$CDDSE and NMEA 2000 PGN 129808

Receive and decode GMDSS DSC on VHF channel 70 with an RTL-SDR and pure Python (ITU-R M.493)

ITU WRC-07 & GMDSS A4 VHF MAYDAY, PAN-PAN & DSC Distress Cockpit Card Generator (NATO phonetic auto-spell, MMSI validator, print-ready for lamination)

Practice questions with spaced repetition for the FCC commercial radio operator exams (GROL, MROP, GMDSS, Radiotelegraph, Ship Radar). All 7 element question pools with FSRS-6 scheduling, mock exams, and progress tracking. No dependencies, runs entirely in the browser.

Inmarsat — independent third-party profile of a public API surface, by API Evangelist. Inmarsat is a British satellite communications operator founded in 1979, originally as the International Maritime Satellite Organization, providing voice, data, broadband, and IoT services over a global L-band, Ka-band, and multi-band fleet of geostationary satel