TM 1-1520-218-10 3C-197 3C-28.  RADAR GRAPHICS T1 . a.   Description.    The  KGR-358  radar  graphics unit interfaces with the weather radar system (KWX-58)  and  receives  navigation  data  from  the  flight management  system.    The  unit  can  display  NAV  1  or NAV  2  or  both  in  a  weather  overlay,  or  as  navigation information only display.  In addition, NAV information can be viewed in a 360° (circle) display with weather in the  top  90°  sector.    Two  checklist  modes  are  also provided  for  complete  checklist  capability  when  using the pocket terminal. (1)   With   the   KGR-358   in   any   of   the   NAV modes, the radar screen will display a normal weather picture, plus the location of the waypoints listed in the active   flight   plan.      Data    referenced   to   NAV   1   is displayed in the lower left portion of the radar display.   Data referenced to NAV 2 will display in the lower right portion  of  the  display.    Included  in  the  data  are  the active  waypoint  name,  the  selected  course  bearing, and  the  aircraft  position  (radial  to  and  distance)  from the active navigation fix.  Aircraft magnetic heading is displayed in the upper left section of the radar display. (2)   A  line  representing  the  course  selected by the flight management system is drawn through the corresponding    active    waypoint.        Selected    course bearing  for  each  NAV  system  is  displayed  with  NAV data  on  each  side  of  the  screen.    A  waypoint  line  will also     be     displayed     connecting     the     waypoints     in numerical  sequence.    An    R  on  the  left  side  of  the screen  indicates  all  visible  NAV  aids  selected  by  the flight management system will be displayed.  The level of  NAV  aids  displayed  is  indicated  by  one,  two,  or three dots on the left side of the  R. (3)   A  joystick  control  is  provided  to  move  a waypoint    to    any    position    on     the    screen.        The coordinates  for  this  new  waypoint  will  appear  in  the lower left or right corner, depending on which NAV is selected  replacing  the  active  waypoint  data.    If  both NAV systems are selected, the new coordinates will be displayed    corresponding    to    NAV    1    and    may    be switched  to  NAV  2.    Pressing  the  check  button  will cause  the  data  to  transfer  to  the  flight  management system and be fixed as a position on the earth.  Once the   data   is   transferred   to   the   flight   management system, the pilot may enter it as he desires. (4)   A track line enables a quick determination of   how   many   degrees   deviation   left   or   right   of   a present  heading  is  needed  to  provide  for  a  clear  path through   weather   or   to   a   new   fix.      The   number   of degrees  and  an   L  or   R  is  shown  in  the  upper  left corner   replacing   the   magnetic   heading   when   track mode is in operation. (5)   Power  is  provided  for  the  unit  through  a 2-ampere   circuit   breaker,   placarded   GRPH   DSPL, located on the overhead circuit breaker panel. b.  Controls  and  Functions.    Refer  to  Figure 3C-145. (1)   Mode Selector Knob.  Allows the operator to turn the unit on and select desired mode. (a)   OFF – Removes power from the unit when mode selector knob is in the OFF position. (b)   EMER   –   Checklists   of   emergency procedures    for    the    aircraft    are    displayed    in    the emergency   (EMER)   mode.      The   emergency   index contains  the  titles  of  the  emergency  checklists.    The selected  checklist  item  is  shown  in  yellow  while  the others are shown in magenta. (c)   3LST – Selects the preprogrammed checklist for display. (d)   SBY   –  Selects  the  standby    mode.   Nothing  is  displayed  on  the  screen  when  in  the  SBY mode. (e)   NAV 1  – Selects NAV 1 information to  be  displayed.    Data  referenced  to  NAV  1  will  be displayed in cyan in the lower left portion of the radar display.      If   NAV   data   is   invalid,   the   data   will   be replaced with dashes. (f)    NAV 2  – Selects NAV 2 information to  be  displayed.    Data  referenced  to  NAV  2  will  be displayed  in  yellow  in  the  lower  right  portion  of  the radar  display.    If  NAV  data  is  invalid,  the  data  will  be replaced with dashes. (g)   BOTH   –  Selects   both   NAV   1   and NAV 2 information to be displayed. (2)   Left/Right Cursor Buttons.  When Ü  or Þ is  pressed,  a  track  line  will  appear  and  move  in  the direction  indicated  by  the  button  pressed.    The  track line will disappear 6 to 10 seconds after the button has been released. (3)   Joystick .  The joystick is used to move a waypoint to any position on the radar screen. (4)   CANCEL   Button.      When   pressed,   the CANCEL  button  will  remove  displays  from  the  radar screen.