Axiom Pro 12 GPS signal

[Chuck - Raymarine - Moderator]

Welcome to the Raymarine Forum bigkabuka,

Please click here to view a FAQ addressing this subject. That said, should the system be able to rapidly acquire a GPS position FIX, not drop a position FIX, and HDOP associated with the GPS position FIX be less than or equal to 1.0, then an external GPS sensor (Raystar 150 GPS Sensor) or external GPS antenna (GA150) would not typically be required. The symptoms reported seem to be those which would be typically be associated with a cartography or MFD software issue. As early LightHouse 3 software release featured several Navionics cartography issues, the following is recommended to address the symptoms reported:

- update to the software within your system's MFDs to LightHouse 3 v3.6.32 or later

- using a computer, update your Navionics chart card with Freshest Data to include not only nautical charts, but also SonarCharts. All Navionics chart card purchases a free Freshest Data subscription updates for first year of ownership. You will simply need to use your computer to create a login ID on the Navionics website and then install and use the free Navionics Chart Installer tool to update your chart card with Fresh Data nautical and SonarCharts. Use the Navionics Chart Installer's boundary tool to set the boundaries of geographic area which you desire to download. It is recommended that one make the bounded area as large as the tool will permit given the type of cartography selected (ex. the bounded area should typically be adjusted to include the entire state and surround states and a bit further offshore than you actually intend to go). Should you need further guidance on installing Navionics Freshest Data updates, then it is recommended that Navionics (508-291-6000) be contacted.

- Use the LightHouse 3 Data Sources feature (HOME->SETTINGS->NETWORK->DATA SOURCES) to identify a single source of GPS, GPS Datum, and Date & Time for your system)