Author : Francis

From 2009 independent IT trainer and consultant for boating. Translator of several navigation apps on iOS and MacOS. Professional in boating for over 30 years old, I dispense from training to applications as well as advice and assistance for the integration of mobile devices (tablets, smartphones) on board pleasure boats.

SHOM 1Q2026 Map Update at Geogarage

Posted onLeave a comment

Catalog update SHOM charts France / DOM-TOM and dependencies by Geogarage for Weather4D Routage & Navigation and SailGrib WR

  • 222 charts updated (dont 7 news editions).
  • 6 new charts added.
  • 3 deleted charts dont 2 Replaced.

The catalog includes 866 charts (1432 with the inserts)

All international cards have been removed and will not be replaced by SHOM (See the information of the GeoGarage blog). However, they continue to be present in the database (but will no longer be updated from their last version).
–––

GPS turmented

Posted onLeave a comment

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 …

NavimetriX update 1.9

Posted onLeave a comment

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.

–––

Get Weather Forecast with Satphone at Sea V.2.4

Posted on

Update 2.4 (01/2026) of the guide Get Weather Forecast with Satphone at Sea version 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.
–––

Updating UKHO maps at Geogarage

Posted on

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.
–––

Reading : album “La Longue Route” by Moitessier by Melchior & Locard

Posted on3 comments

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 …