Furuno FMD-3100 Operator's Manual page 312

APPENDIX 2 ABBREVIATIONS, SYMBOLS
Symbol name and description
Velocity vector - stabilization indicator
Ground stabilization is indicated by double arrow-
head and water stabilization is indicated as single
arrowhead.
Path predictor
System past track is indicated by thick line. Raw
sensor primary past track is indicated by thin line.
Raw sensor secondary past track is indicated by
grey thin line.
Past track
System past track is indicated by thick line. Raw
sensor primary past track is indicated by thin line.
Raw sensor secondary past track is indicated by
grey thin line.
Past track - time increments
Time increments are presented as single lines per-
pendicular to the past track.
Past track - past positions
Past positions are drawn as small filled circular sym-
bols.
Radar targets in acquisition state
Tracked radar targets
TT: Std or small user selection by Symbol Display
AP-10
Symbol graphic(s)
5 mm in diameter
3 mm in diameter