Admiralty Vector Chart Services

Electronic Navigational Charts (ENC) is the official chart data compiled for ECDIS systems in accordance with SOLAS regulations. Before the ENCs can be presented in the ECDIS, they must be converted to the system’s own internal format, which creates System Electronic Navigation Charts (SENC).
Transas performs the conversion to SENC before sending the data to the vessel. This allows us to test and validate the data as well as relieve the onboard personnel from the time consuming conversion to SENC.

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The Admiralty Vector Chart Service (AVCS) brings together Electronic Navigational Charts (ENCs) from national Hydrographic offices around the world and new ENC coverage produced by UKHO in co-operation with the Foreign Governments. This provides comprehensive, official, worldwide coverage och official charts.


Transas offers AVCS official charts to all customers with onboard non-Transas ECDIS.


AVCS contains only ENC data that meets SOLAS Carriage Requirements for use within Electronic Chart Display and Information Systems (ECDIS).