iNavX 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) to 0,30 NM (556 meters high) beyond which an alarm (Buzzer) Fires. Read more …


British company 
As 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.