Calculated values – ACR Electronics 2662 User Manual
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Used Fields: 1,5,6,7,8,9 
 1:COG 5:SOG 6:SOGIn 7:SOG 8:SOGIn 9:Valid 
 
 
OSD - Ship Data 
 
 1 2 3 4 5 6 7 8 9 10 
 | | | | | | | | | | 
$--OSD,x.x,A,x.x,a,x.x,a,x.x,x.x,a*hh
Field Numbers: 
 1) Heading, degrees true 
 2) Status, A = Data Valid 
 3) Vessel Course, degrees True 
 4) Course Reference 
 5) Vessel Speed 
 6) Speed Reference 
 7) Vessel Set, degrees True 
 8) Vessel drift (speed) 
 9) Speed Units 
10) CRC 
 
Used Fields: 1,2,3,4,5,6,9 
 1:HDT 2:HDTVal 3:COG 4:COGRef 
 5:SOG 6:SOGRef 9:SOGInd 
 
 
HDT - True 
 
 1 2 3 
 | | | 
$--HDT,x.x,T*hh
Field Numbers: 
 1) Heading Degrees, true 
 2) T = True 
 3) CRC 
 
Used Fields: 1,2 
 1:HDT 2:HDTRu 
 
 
 
 
ROT - Of Turn 
 
 1 2 3 
 | | | 
$--ROT,x.x,A*hh
Field Numbers: 
 1) Rate Of Turn, degrees per minute, \-\ means bow turns to port 
 2) Status, A means data is valid 
 3) CRC 
 
Used Fields: 1,2 
 1:ROT 2:Valid 
 
Y1-03-0212H
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