GPS on I-Pilot Link

When the I-pilot link is engaged does my HB automatically use the GPS from the head of the TM for routs and spot-lock or the built in GPS in the HB? And what about if the T-motor (I-pilot link) is connected but stowed, which GPS is used?

The trolling motor always uses the GPS built into the trolling motor ...... The Humminbird unit just supplies Waypoint data, tracks, etc to the motor.

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Originally Posted by BobB

The trolling motor always uses the GPS built into the trolling motor ...... The Humminbird unit just supplies Waypoint data, tracks, etc to the motor.

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Ok I'm trying to figure out if I mark a waypoint on the HB if the coordinates are actually coming from the gps on the TM or from the gps in the HB.

If you mark the waypoint on the HB unit, the coordinates are derived by the HB unit and it's GPS.... and saved in it's memory ..... If you tell the I-pilot link to go to that waypoint, the HB unit sends the coordinates via the Ethernet connection to the I-pilot link.....The the I-pilot link uses it's own GPS to go to those coordinates.

Is there a way to use the GPS in the TM "Ulterra w/I-Pilot-Link" as the primary GPS like as if one was to add a "puck type" HS GPS? Here is a sketch of the setup in my boat, I have the transducer mounted up front about a foot away from the TM if so it would sure give me more accurate readings when pulling up on a brush pile.

Attachment 258768

That's not a bad idea ..... maybe send an email to Humminbird and suggest that. I don't think it is possible to do that now but they could probably do that with a software update.

If they were able to do that, the problem I see is that that trolling motor GPS would be disabled unless the trolling motor is deployed, so you would have to switch back to the internal GPS when running with the main motor .... and you would have a problem with waypoint accuracy. You best bet would be to add a HS GPS and get rid of the doughnut issue at the same time.