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OS X 10.11 El Capitan et System Integrity Protection

Important information for users or GPSNavX MacENC on Mac OS X.

If you made the update of your d & rsquo system to OS X operating 10.11 " Captain " (¹) you may encounter difficulties, or the & rsquo; impossibility, to recognize the devices connected to your USB ports, such GPS, AIS and Multiplexers. Actually, two actions are imperative to do. Follow the guide… (continue…)

Signal K Project, the ’ universal open source exchange of marine data

You will soon hear about Signal K, un standard de communication de données marines, developed in open source, which aims to replace the standard NMEA (0183 and 2000) technically overwhelmed by the exponential development of connected objects. Designers intend to make an open and free protocol developers and industrial customers, for s & rsquo; free of the constraints of NMEA standards : cost of licenses, flow limits, limit the number and types of & rsquo; camera, failure to adapt to complex environments, wireless communications, therefore incompatible with the & rsquo; Internet of Things and & rsquo; tout court internet.


Does Navionics charting become dangerous [Update] ?

Since the beginning of the navigation season, many boaters have found an increasing number of errors on Navionics charts, as a result of recent updates, all media. A bit everywhere in Europe, Germany, Baltic countries, French coasts of the Channel and until Spain, appeared non-existent channels and erroneous soundings, missing soundings, missing information, contradictory bathymetric information depending on the zoom levels, and so on. The most important is that these findings are made by assiduous users of long-standing Navionics cartography, experienced navigators.

[Corrective update 26 August 2015]

[SHIFT-2 amendment October 2015] See end of entry. (continue…)

AIS for Dummies

With the progressive generalization of the AIS (transceivers) on board our yachts (¹), and their mandatory presence aboard a large part of merchant ships, capacities for display and processing of targets (surrounding vessels equipped with a transceiver) have significantly improved our security. Still need to know how to interpret this information that, in high-traffic areas, can quickly become a real headache.

In such a situation, better have a quick diagnosis of the risk of collision !


Tutorial weather available on Amazon Kindle

The tutorial weather « Introduction to weather marine» is now available on Amazon. Available on virtually all media and operating systems thanks free applications «» Kindle " (*).

From weather understanding up to request and decode weather forecasts and GRIB files, This guide offers, After a reminder of the basics of meteorology, a practical and concrete to access relevant information approach, view and analyze. An indispensable learning tool before addressing weather navigation as Weather4D applications. (continue…)

Iridium GO! finally corrects its shortcomings [Update]

Iridium has just published an update of its Iridium GO device firmware! to correct a number of dysfunctions, including the slowness of data transfers (Messaging, GRIB files, aso.) but also recurrent problems of voice connection with the network. (continue…)

iNavX changes hands

New developers, new logo, new splash page, and new web site.

Version 4.7.0 just be issued by NavX Studios LLC, the company that bought all of Richard Ray's computer creations : GPSNavX, MacENC and iNavX.

Procurement is carried out during the summer. New developers (they are two) were first focused on iNavX, for a first update of debugging, performance optimization and acceleration of charts downloading with X-Traverse. Let us hope that this transfer will bring a new dynamic to these excellent applications, whose creation and development have rested since 2002 on the unique Rich Ray's keyboard.

I keep going to test, produce the French localization and provide support for these applications on behalf of the new team.


AIS, VHF/DSC radio and LEDs lights

led_bayonnetteThe Department of Ecology, Sustainable Development and Energy, has published in date of 4 August a boating safety alert about LEDs bulbs (¹). The text warns boaters on the risks of radio interference found where the VHF antennas are close to navigation lights or bridge lamps equipped with LEDs bulbs.

Actually, some LEDs (Light-Emitting Diode) can cause electromagnetic interference disrupting radio frequencies as the VHF transmissions, causing losses in the AIS data transmission, and also that of the GPS data by VHF transmitters with Digital Selective Call in the event of a distress signal. These interferences are generally due to bad bulbs power supply and shield design


Météo-France GRIB files finally for free

A year after my advocacy for free European data (¹) Météo-France finally offers free access to its two famous ARPEGE and AROME models. A welcome development, initiated in 2014 by the success of MyOcean project, Since then integrated into Mercator Ocean (²), but a notorious change in attitude for a public institution to which always asked to self-finance a significant portion of its budget. Forecasts from these two models are made available on Météo-France portal in the GRIB version 2 format. Since the 21 st of July 2015.


VirtualBox : increase the size of virtual disk [Update]

virtualboxVirtualBox allows me on my MacBook, for a while, to use some applications unavailable with OSX. In example, Some applications of configuration. I produced, from my website, a video tutorial regarding the installation of a Windows system 7 on a Mac with VirtualBox.

At the first installation, the application allows to create a default dynamic virtual disk 20 GB. The word « dynamic» means that the actual size used by the virtual volume will be those installed files, and that this size will increase with new files created, up to a maximum of 20 GB. As Windows 7 system needs only 12 up to 13 GB space, that seems actually enough and one do not change this size.

But today, with more and more applications, my virtual disk is full. I cannot add more files, nor proceed the major update, as the Service Pack 1 recently available. Do not panic. Since version 4.0 VirtualBox allows you to increase the size of the virtual disk.

[SHIFT version 5.0] (continue…)