+44 (0) 1542 841245 Opening Hours: Mon to Fri 08:30 – 17:00 customerservices@poseidonnavigation.com


The Challenger software has been designed and developed by Poseidon Navigation Services to provide the mariner with a simple yet effective solution for receiving weekly electronic Notices to Mariners and navigational updates, enabling the vessel to remain compliant with maritime regulations at all times.

Challenger allows the end user to effectively manage their on-board holdings, and can receive updates either by a direct web sync or by receiving weekly email files.


  • British ADMIRALTY Chart & Publication tracings and corrections
  • ADMIRALTY Notice to Mariners in electronic format
  • e-Reader 1.4 software accessible via Challenger
  • Ability to select and download ENC data, replacing need for CD/DVD updates
  • Challenger Instant Licensing B2B module for AVCS cells & folios, ADP & AENP ordering
  •  Auto Routeing A to B via C technology
  • Pay As You Sail (PAYS)
  • Piracy Data
  • Weather data
  • Port Information
  • Under Keel Clearance Manager
  • Web Portal for shore based inventory management, tracking and B2B module
  • NAVAREA warnings for worldwide coverage
  • Complete management facility including Correction Log with New Edition alerts
  • Update files received weekly by e-mail or web synchronisation with our server
  • Customisable backup facility ensures data can easily be retrieved weekly or monthly
  • Comprehensive T&P report generator, tailored to specific needs of navigator
  • Add on Cyber Security tool for protecting the Bridge ECDIS
  • 24/7 Technical support team


Challenger has been fully certified by the UK Maritime & Coastguard Agency (MCA) for providing electronic Notices to Mariners as a replacement for paper versions. It has also been approved by the United Kingdom Hydrographic Office (UKHO) to provide their navigational data in a digital format.

The full list of approvals are as follows:

United Kingdom Hydrographic Office
United Kingdom Hydrographic Office

German Flag State (BG Verkher)

Maritime & Coastguard Agency
Maritime & Coastguard Agency

Panama Maritime Authority


Republic of the Marshall Islands
Republic of the Marshall Islands

Isle of Man Ship Registry
Isle of Man Ship Registry

Malta (Transport Malta)
Malta (Transport Malta)