Chart Permit For Free

It gives the date of publication, Diagrammatic index of coverage date of the current edition, the coverage area of publication & titles of various charts & publication.

With Chart catalogue you need to physically see the approximate planned route and then note down all the charts that the route of your voyage pass through.

Unlike paper charts which are only purchased once, until a new edition is published or a chart is cancelled, electronic charts are purchased through a license system called permits. Permits are used to control the permission to use a chart. They prevent unofficial copying and distribution.

Electronic Navigational Charts (ENC) are vector data sets that support all types of marine navigation.

3 System Electronic Navigational Chart (SENC) means a database resulting from the transformation of the ENC by ECDIS for appropriate use, updates to the ENC by appropriate means and other data added by the mariner.It is not intended to be sufficient for safe navigation.

When we receive permit for ENCs, the permit contains key to open ENCs (base cell) which are locked. But the ENCs are already there in your ECDIS as base cells. A base cell becomes an ENC when some security features (IHO system key) are added to it.

It provides water depths, locations of dangers to navigation, locations and characteristics of aids to navigation, anchorages, and other features. The nautical chart is essential for safe navigation. Mariners use charts to plan voyages and navigate ships safely and economically.