An exponential number of cases of jamming and spoofing of GPS signals has been observed throughout the world in recent years. Whether due to conflicting states, to terrorism, or simply by using a jammer accessible to anyone on eBay or the Dark Web for less than €100 ! Our modern world is based on a frighteningly fragile system, extremely vulnerable to jamming, signal spoofing and the threat posed by anti-satellite weapons. Simply consult the site in real time gpsjam.org to convince yourself (¹). Read more …
Which iPad for navigation ? [MAJ-15]
Many of you ask me about choosing an iPad for boating use. Unfortunately having no time to respond to every request a post is required. Every year, it is appropriate to review this issue, and sometimes even more often.
Follow your guide, new iPads 2026… Read more …
Navimetrix provides ensemble routing and much more…
With the brand new update 1.9 NavimetriX brings, among other new features, a high-level routing function : the overall routing. Read more …
NavimetriX update 1.9
New features
• GEFS overall routing : Routing uses 30 weather scenarios of the GEFS model in addition to the control run. This makes it possible to visualize the reliability of the routings and the dispersion of wind and pressure along the route.. Resolution 0.5°, 30 forecast days.
• Real-time rain radar : Five radar sources are available : Météo-France, DWD (Germany), DPC (Italy), MET Norway (Scandinavia) and NOAA (UNITED STATES). Each source includes the nowcast (nowcasting). The timeline allows you to view past observations and future forecasts.
• Automatic reading of routes : play/pause button to start automatic scrolling of routes
• Interface PIXEL EXOCET : Pixel sur Mer interface support – EXOCET for NMEA data exchange 0183 with on-board instruments.
Improvements
• Central and side handles for area selection on the map.
• Built-in image viewer for weather maps on all platforms.
• Linux : reducing the size of the AppImage (deleting debug files).
• Removed land mask artifacts along coastlines.
• Interaction in weather graphics : changing the display time directly in the graph.
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NavimetriX Update 1.6.71
After Christmas presents, there are New Year's gifts, after New Year's gifts there are… NavimetriX gifts : a bunch of new functions, some of which are already ahead of roadmap. We are not idle at SOFT4SAIL ! New update 1.6.71 (iOS/macOS waiting). Read more …
Get Weather Forecast with Satphone at Sea V.2.4
Update 2.4 (01/2026) of the guide Get Weather Forecast with Satphone at Sea release French and English.
- Update of Starlink conditions and services until 30 January 2025.
The version number is no longer implemented on Apple Books, I now add it to the description of the book. It is also present on all page footers.
If the update doesn't appear in Apple Books, delete the book from your device and reload it from AppStore, you will not have to pay it again.
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Updating UKHO maps at Geogarage
Update of the British charts catalogue from UKHO (United Kingdom, Ireland, British dependencies, South Africa, Malta,) for NavimetriX, Weather4D Routage & Navigation and SailGrib WR by Geogarage.
United Kingdom, Ireland, British dependencies :
- 827 updated charts, dont 11 new editions
South Africa
- 55 cards including 2 new editions
Painted
- 5 charts
NGA (National Geospatial-Intelligence Agency charts)
- 41 International Cards
In total the UKHO catalog includes 887 charts (1639 with insets) + 41 International Cards.
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Reading : album “La Longue Route” by Moitessier by Melchior & Locard
Anyone who has not read “La Longue Route” by Bernard Moitessier cannot imagine the enthusiasm that has taken hold of thousands of young people for sailing while reading it.. Three years after the events of May 1968 who saw youth violently reject the order established by their parents, this founding book — published by Arthaud editions — comes at the right time to open a door of freedom to the open sea. The time has come for “the big departure and life on the water”. For my part this book, discovered in 1973, was the trigger for my career in boating, started the same year with an internship in Ireland at the Glénans Nautical Center.
In 2025, Stéphane Melchior, Younn Locard and Joal Grange bring Moitessier’s journey to life in a superb comic book album, a treat for young people 7 to 117 years old ! Read more …
Geogarage maps update 1Q2026 [2]
Updating card catalogs at Geogarage for NavimetriX, Weather4D Routage & Navigation, SailGrib WR :
100 ENC cards (IHPT) rasterized on a total of 100 charts.
126 ENC cards (HHI) rasterized, dont 6 new charts, out of a total of 316 charts.
72 ENC cards (AS) rasterized, dont 18 new charts, out of a total of 125
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Map updates at Geogarage 1Q/2026
Updating card catalogs at Geogarage for NavimetriX, Weather4D Routage & Navigation, SailGrib WR, Squid :
165 ENC cards (IHM) rasterized, dont 5 new charts, out of a total of 335 charts.
129 ENC cards (NLHO) rasterized, dont 3 new charts, out of a total of 138 charts.
237 ENC cards (BSH) rasterized, dont 10 new charts, out of a total of 317 charts.
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