... - Nav Data - Steering Display - Highway6. High performance GPS receiver7. User SD card to save and transfer waypoint ... , Arrival, Speed, Voltage, Proximity, Waypoint and Time10. Nav Data Input/Output: 1) Input:$--DBT, $--DPT, $--GGA, $--GLL, $--MTW, $--RMA, $-- ... RMB, $--RMC, $--VTG, $--XTE, $--ZDA, $--WPL, $--HDG 3) Output for autopilot:$--AAM, $--APB, $--BOD, $--VTG11. Proximity Waypoint 10 proximity ...