Versions of nmea sentences – ACR Electronics 2662 User Manual
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3.8.7 Calculated Values
Processed dynamic ship data such as position, SOG etc. is generated by NMEA sentences. 
 
Exceptions: 
If "Calc" is displayed on the sensor analyze screen, this means that this sentence is used for 
calculating dynamic ship data. 
 
ROT out of HDT 
ROT direction left / right -/+ will be calculated out of the HDT Message, if a TIROT sentence 
(only “TI”-Talker devices are valid) is not connected. 
 
ROT > +10°/min 
 Output +720°/min
ROT < -10°/min
 Output -720°/min
Other
 Output 0°/min
 
COG information out of VBW 
COG will be generated out of VBW, if HDT is available. In this case the atan2 of the 
longitudinal and transversal speed plus heading is basis of the calculation. 
 
Longitudinal/Transversal SOG from VBW 
If VBW is available, SOG is also calculated without HDT. 
 
3.8.8 Versions of NMEA Sentences
RMC 
v2.30 - $GPRMC,122500.00,A,5330.1234,N,01001.2345,E,11.2,352.2,120202,2.0,E,A 
v2.20 - $GPRMC,122500.00,A,5330.1234,N,01001.2345,E,11.2,352.2,120202,2.0,E 
 
GLL 
v2.30 - $GPGLL,5330.1234,N,01001.2345,E,141800.00,A,A 
v2.00 - $GPGLL,5330.1234,N,01001.2345,E,141800.00,A 
v1.50 - $GPGLL,5330.1234,N,01001.2345,E 
 
GGA 
v2.00 - $GPGGA,092854,5330.1234,N,01001.2345,E,1,3,1.2,65.2,M,45.1,M,, 
v1.50 - $GPGGA,092854,5330.1234,N,01001.2345,E,1,3,1.2,65.2,M,45.1,M 
 
VBW 
v2.30 - $VDVBW,11.00,01.00,A,12.00,02.00,A,,V,,V 
v2.20 - $VDVBW,11.00,01.00,A,12.00,02.00,A 
 
VTG 
v2.30 - $GPVTG,350.0,T,,M,10.0,N,,K,A 
v2.20 - $GPVTG,350.0,T,,M,10.0,N,,K 
 
OSD 
v2.30 - $INOSD,359.9,A,5.2,B,12.6,B,150.0,1.2,N 
v2.20 - $INOSD,359.9,A,5.2,B,12.6,B,150.0 
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Y1-03-0212H
