Alfredo Contaldo · vidéo

Ce que couvre cette vidéo

The NAVTEX (Navigational Telex) system provides automated maritime safety information (MSI) via medium-frequency radio broadcasts, operating as a passive receiver within the Global Maritime Distress and Safety System (GMDSS).0:36 While mandatory for SOLAS-regulated vessels over 300 gross tonnage, it remains an optional but valuable safety tool for recreational sailors, particularly for offshore passages outside of VHF or cellular coverage.2:59 The system receives weather bulletins, gale warnings, and search-and-rescue (SAR) alerts on 518 kHz (English) and 490 kHz (national languages), with a nominal range of 200 to 400 nautical miles.0:55

The NASA Marine BT-3 unit integrates with a smartphone via Bluetooth, allowing users to filter specific message types and stations through a mobile app.3:34 Installation involves connecting the unit to a 12V power source and mounting the H-Vector antenna on the stern pulpit.10:09 Because the system is passive, it requires no subscription or operator certification.1:49 The device stores incoming messages locally, replacing legacy thermal paper printers with digital display interfaces.4:00

Plus de vidéos de Alfredo Contaldo

What is the BOOM VANG and how to use it ⛵ Practical guide to sailboat trimming - Sailing Lesson ⚓oct. 2026Chartwork Problem 5.3.3-2 Sector C (Chart 5D) 🗺️ Unlimited Nautical License ⚓oct. 20265.1.1 - 1 Chart Problem Solving 🗺️ Nautical License Over 12 Miles ⚓oct. 2026Safe Night Sailing: Complete Guide and Practical Tips ⚓✨⛵⚓Sailing Course Ep. 12sept. 2026

De Alfredo Contaldo — voir le bateau, l'équipage et chaque vidéo analysée de la chaîne.

The Sailing Directory Newsletter

Un e-mail avec les meilleures trouvailles de la flotte — les moments, les bateaux et les histoires qui valent la peine d'être regardés. Entrez votre adresse pour recevoir votre propre exemplaire.