Furuno ECDIS FMD-3100 Installation Manual page 77

APPENDIX 3 DIGITAL INTERFACE
XTE - Cross-track error, measured
$--XTE,A,A,x.x,a,N,a*hh<CR><LF>
1 2 3 4 5 6
1. Status: A=data valid V=Loran-C blink or SNR warning
2. Status: A=data valid V=Loran-C cycle lock warning flag
3. Magnitude of cross-track error (0.000 to 100.000)
4. Direction to steer, L/R
5. Units, nautical miles (fixed)
6. Mode indicator (A=Autonomous mode D=Differential mode S=Simulator mode)
AP-21