Anchorage alarm with iNavX

inavx anchor alarmiNavX offers for a while an "anchor alarm" feature, currently available at the bottom of the application Home page.

This function was frequently criticized as impractical.. iNavX 3.3.0 rectifies the failure in an improvement that makes it particularly clever now fully operational.

The "Anchor Alarm" function allows you to set the radius of a drift circle, with an adjustment from 0,01 NM (19 meters high) down to 0,30 NM (556 meters high) beyond which an alarm (Buzzer) Fires. Read more …

When Katia meets La Louise

Thierry Dubois and his teammates, dont Jacques Vermeulen experimenting its Iridium connection with its new MacBook Air, must not be laughing at the time I post this short post.

La Louise, conveying from Newfoundland to La Trinité, is being caught up in Hurricane Katia, ex-tropical cyclone, which is due to reach the coast of the British Isles next night. Based on last position and estimated speed, La Louise should be in the west of the weather area "Romeo", either in the southeast of the center of the Low, its intended position on the Navimail map below the location of the red boat at 18h UTC : Read more …

Use an Iridium phone with Mac OS

mailasailBritish company Mailasail provides tools to connect directly an Iridium to Mac OS X. A driver specially designed by them now allows data to be transferred from a messaging application under OS, mainly Mail or Thunderbird, and surf the Internet.

We can make requests for weather files by mail from servers Mailasail, Saildocs, ocens.net or even Navimail. The subscription to Teleport-it provides several services : mail compression, access to the weather file server Teleport Weather (¹), Possibility of creating a personalized blog. In addition, there are two very useful applications : Teleport Firewall and Teleport Proxy.

Finally, Mailasail had the good idea to offer a free trial subscription, allowing you to carry out all the configuration that will follow, and to test mail sending/receiving following procedure described on its website. Read more …

XyGrib for Mac now truly “Apple like”

XyGribXyGrib, the GRIB weather file viewer developed under Linux and well known in the PC world, is the subject of a port on Mac which, since version 5.0, is real progress compared to the first versions. Since the beginning 2011 it is distributed as an executable version for Mac (Intel) Ready to use, as a package in a disk image (.DMG).

We must welcome the community of this development that makes a great work for the greater benefit of boaters. Open source software opensource, zyGrib is distributed under the GNU GPL v3. zyGrib allows the display of a large number of GRIB files, from many weather Forecasting Models weather. It also allows automated requests generated by the application. Read more …

Reading : "Du Bon Usage des Étoiles" by Dominique Fortier

Published by Alto, Quebec, in 2008, it has been re-published by La Table Ronde, Paris, in 2011. He has just won the Seafarers' Prize at the Etonnants Voyageurs Festival this summer 2011.

I read this book in June, when I learned of its presentation in Saint-Malo, and I kept the evocation of it under my belt for this section Reading, so delighted was I by the interest of the subject, the quality of the narration and the freshness of the writing.

Alas, I was preceded by Arielle Cassim who has just reported on it on his blog Seableue. I bow and invite you to go there ! Read more …

iNavX and the “Man Overboard” function

For a while Rich Ray was asked to add a feature button "Man overboard" in its applications. Recently, following a new topic on the website macsailing.net forum, He gave the following reasons for his refusal :

  1. Such a button would take up limited/valuable screen real-estate on every screen..
  2. Such a button , with expected behavior, would be in violation of the " Developer Program License Agreement " :
  • 3.3.8 For Applications that use location-based APIs, such Applications may not be designed or marketed for automatic or autonmous control of vehicles, aircraft, or other mechanical devices; dispatch or fleet management; or emergency or life saving purposes. Translation : Concernant les applications utilisant les API basées sur la localisation, ces applications ne doivent pas être conçues ou commercialisées pour le contrôle automatique ou autonome des véhicules, avions, ou tout autre appareil mécanique; la gestion d’envoi ou de flotte; ou dans un but d’urgence ou de sauvegarde de la vie humaine.

An emails exchange between us allowed him to find a compromise respecting the rules imposed by Apple. Read more …

ADS-B, aviator's AIS

As I already wrote, in the word “aeronautics” there is “nautical”. This is no coincidence. So much so that for several years the world of aviation has been developing a concept similar to maritime AIS : ADS-B. I also would not be able to say which of the two is the first , it doesn't matter !

As the news that concerns us is a little flat these days – normal in July – I became interested in air navigation when I discovered an iPad application, which I will talk about a little further down.

 

ADS-B, Automatic Dependent Surveillance-Broadcast, which can be translated as “Diffusion Dependent Automatic Surveillance” is generally based on the same principle as AIS. Only the technical means differ. Read more …

Free ENC river charts for use with MacENC

VNFAs part of its policy aimed at offering users an ever more efficient and safe waterway, public institution Waterways of France (VNF) embarked on the production of electronic navigational charts on various inland waterways. The first two : the “Dunkerque-Escaut” and “La Garonne” connection are published.

The big surprise, unique case in the history of French administration, is that these charts are available free and free download on VNF website. It was worth saluting ! Read more …

iPhone built-in GPS : a formidable accuracy !

You have certainly heard the song by Helmut Fritz “It annoys me” ? She will make a good number of holidaymakers dance this summer in campsites and on the beaches. Well me, what annoys me, it is the disbelief of a certain number, still today, about iPhone GPS accuracy. Isn't it stupid, isn't it ?

I have performed a few days ago a small experiment, during a call in the charming little harbour of Saint-Vaast-La-Hougue. Read more …