Posted 10/11/2018 19:38 (#7041213 - in reply to #7040833) Subject: RE: 20/20 overrides reported heading
Not a 20/20 expert here, but something to do with a NMEA string being turned off that is required by the 20/20- VTG maybe? What model GPS receiver? I'm assuming you're sending serial NMEA strings out of the receiver and into the 20/20.