Been told I need to get a separate GPS antenna to be able to get my waypoints to show on my M360. Is there a specific antenna to get, or is that the same as as a Heading Sensor?
I'm assuming it needs to be installed relatively close to unit on the bow. Once installed, will I be able to see the points I have marked on the other networked units, as well as be able to scroll and mark objects like I can now do with side imaging?