TM 1-1510-225-10 3B-24 Figure 3B-11.  Map Symbol k.   FMS-800  Map  Display  Operation.  Refer to Table 3B -4 for display options. (1)   NAV   Warning.      If   the   accuracy   of   the FMS navigation falls below the 95% threshold, a NAV Warn  occurs.    All  navigation  information  remains  on the  display  during  a  NAV  Warn.    The  NAV  Warn  is indicated  by  changing  the  FMS  Primary  NAV  source annunciator to yellow. Table 3B-4.  FMS-800 Map Display Operation MAP MODE PREVIOUS WAYPOINT DISPLAYED COURSE LINE TO ACTIVE WAYPOINT FMS To -To Yes Previous and Active waypoint are connected.   The   FMS   flies   a DTK. FMS   Direct- To No Desired  Track  line is    drawn    to    the active waypoint from the computer Direct-To position FMS To - From Yes Manually     entered course line is drawn to the Active waypoint. Manual Sequencing Yes A dashed line extends   from   the active waypoint. l.    KLN  90B  Map  Display  Options.    Refer  to Table 3B -5 for display options. Table 3B-5.  KLN 90B Map Display Options MAP MODE PREVIOUS WAYPOINT DISPLAYED COURSE LINE TO ACTIVE WAYPOINT Leg Mode Yes Previ ous and Active waypoint are connected. The FMS flies a DTK. OBS   Direct- To Mode No Desired   Track   line is drawn to the active waypoint from    the    aircraft's current position. OBS Mode Yes Manually entered course line is drawn from the Active waypoint. Manual Sequencing Yes A dashed line extends     from     the active waypoint. m. VOR   Map   Display   Operation.      Refer   to Table 3B -6 for the display option. If  the  primary  source  is  a  VOR,  a  solid  white bearing   line   is   drawn   from   the   aircraft   to   the   VOR station.  Since  distance information is not available to the VOR station, the VOR station symbol is not drawn.