[DG] [DG11] Axiom 9

[Derek - Raymarine - Moderator]

Hi Marc,

Thank you for your enquiry.

The location of the sonar logs at 0 lat and 0 long suggest the GPS does not have a fix, or the GPS used at the time of the recording of the sonar logs did not have a fix.

What source of GPS are you using in your system? Have you checked the performance of the GPS and advise the accuracy of the position - the HDOP and how many satellites are in use?

Sonar logs relies on the GPS for position as well as time and date. Also, if the GPS position is incorrect or there is no fix, then the AXIOM will be unable to recognise the correct date on the chartcard and will indicate that it is out of date and will not be used.

How and where is the AXIOM display fitted? Does it use a metal adapter plate or is it mounted in some form of metallic or conductive surface? Are you using the internal GPS within the AXIOM or an external antenna.

Regards
Derek