NMEA Data can be read and written to and from your boats Nexus NX2 system over a Bluetooth link. This page explains this process in more detail.
Receiving: NMEA data sent by Nexus fdx server to SailClever
SailClever can recognize the following NMEA sentences: GLL, HDM, MWD, RMC, VDR, VHW, VTG, VWR and VWT. The program therefore has access to live Boat speed, Heading, Position, Wind and Tidal data.
Transmitting: NMEA data send by SailClever to the Nexus server
The parameters listed in the below table can be sent using the proprietary Nexus sentences (TBS, CFD and CAD) and standard NMEA sentences (APB, ZTG).
| Start | Navigational data | Performance |
| Boat lengths from line | Angle to the mark | Target Boat Speed |
| Start Countdown | Bearing to waypoint | Target downwind TWA |
| Distance to waypoint | ||
| Course to steer | ||
| Stored upwind heading | ||
| Turn | ||
| Cross track error | ||
| Waypoint closure velocity |
If you set-up the PDA as the active navigator then it will automatically transmit all the relevant navigational data to the boats instruments. The advantage of this is that you will no longer have to manually input the route or individual waypoints into the system as you go. Put the route into the PDA and it will take care of the rest!
Choose what data to send and when to send it
Because pushing buttons on the displays during the race is time consuming and distracting the application allows you control what data is sent during various stages of the race from before the start to the race itself. This is achieved by overwriting the proprietary Nexus sentences. For instance before the start the TBS number could be set to show Distance to the Line, then after the start it would automatically switch to target boat speed as per normal, the advantage of this approach is that you will not have to manually change anything as everything will be taken care of by the application.
Connection Details
The Bluetooth dongle is simply just plugged it into to the RS232 port at the bottom of the server. The dongle requires power to run so you will have to take the two wires provided and wire them into the +/-12V supply on the instrument server. This way the dongle will turn on and off with the instruments.