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Setting dg if gps signal is lost – TruTrak Gemini PFD User Manual

Page 19

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Setting  DG  If  GPS  Signal  Is  Lost  

If  the  GPS  signal  is  lost  the  DG  will  enter  the  free  
gyro   mode.     This   mode   has   no   track   or   heading  
reference  so  the  DG  must  be  set  against  a  compass  
heading  or  other  directional  reference.    There  are  
several  options  for  changing  the  DG  direction.      
1-­‐To  stop  the  DG  from  drifting  left,  press  and  hold  
the   ‘control   key’   and   to   the   right   of   the   DG   box.    
The  longer  these  keys  are  held  the  more  the  drift  

will  be  reduced.  
2-­‐To   stop   the   DG   from   drifting   right,   follow   the  
same  procedure  as  in  1,  but  touch  to  the  left  of  the  

DG  box.  
 
Once   the   drift   has   been   removed   (DG   stopped),  
the  following  procedure  can  be  used  to  set  the  DG  
value.  
 
1-­‐Hold   the   key   on   the   side   of   the   DG   box   that  

corresponds   to   the   desired   DG   direction.     The  
longer   it   is   held,   the   faster   the   DG   will   move.    
Release   the   key   when   the   desired   value   is  
displayed  in  the  box.  

 

Removing  drift  to  the  left  

 
 

Moving  the  DG  to  the  left