ST290 GPS and NMEA issues

[Steve - Raymarine - Moderator]

I understand what you are looking for, and there are many ways of wiring a system. But we focus on the right way on this forum and have come up with these ways to ensure everything is communicating properly. When you first started your inquiry you stated you weren't get a particular piece of data (LAT/LON) on the ST290. So in order to confirm full communication of equipment, we would recommend we way we explained. If you choose to leave the wiring the way it is, then we will not be able to confirm full communication of data between all the equipment.

It does sound like the system was working adequately with the original wiring, and was providing navigational information.