[DG] [DG] "No Pilot" message

[Derek - Raymarine - Moderator]

Hi Wings
Thanks for the update.

The fact the SPX30 works OK now on its own and the restof the system works on its own suggests the interconnecting cable is the likely culprit, OR there is a data loop and by disconnecting the SPX30, you have removed the dataloop.
Try is different cable between the two systems, if the fault returns, suspect a data loop or some form of earth / groundloop which is triggered by the connection. soundslikje you are nearly there though.

With ref to the C80. with no heading info from the SPX30, while the boat is stationary the boat's position willbe a round dot, this should change to a boat shape once you are underway because when you rely on GPS COG for heading, this is unreliable under 1.5kts and so the boat position is defined as a dot until the SOG has climbed to a number above 1.5kts and COG becomes a reliable indication of boat heading.

Note that Heading is derived from the SPX30 compass,whereas COG is output from the GPS sensor, the two are not related.

If with the SPX30 disconnected from the C80 you are losing COG and NO FIX appears on the C80, then yes- you have a GPS antenna problem.

If you have reconnected the SPX30 and intermittantly getting NO FIX or loss of heading, there is stillan issue in the SeaTalk connection between the SPX30 and the rest of the system, as described at the top of this post.

Thanks
Derek