MDEV-GPS-RM datasheet(11/27 Pages) LINX

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RMC – Recommended Minimum Specific GPS Data

Figure 15 contains the values for the following example:

$GPRMC,053740.000,A,2503.6319,N,12136.0099,E,2.69,79.65,100106,,,A*53

Recommended Minimum Specific GPS Data Example

Name

Example

Units

Description

Message ID

$GPRMC

RMC protocol header

UTC Time

053740.000

hhmmss.sss

Status

A=data valid or V=data not valid

Latitude

2503.6319

ddmm.mmmm

N/S Indicator

N=north or S=south

Longitude

12136.0099

dddmm.mmmm

E/W Indicator

E=east or W=west

Speed over ground

2.69

knots

TRUE

Course over ground

79.65

degrees

Date

100106

ddmmyy

Magnetic Variation

degrees

Not available, null field

Variation Sense

E=east or W=west (not shown)

Mode

A=autonomous, E=DR, N= Data not

valid, R=Coarse Position, S=Simulator

Checksum

*53

End of message termination

Figure 15: Recommended Minimum Specific GPS Data Example

VTG – Course Over Ground and Ground Speed

Figure 16 contains the values for the following example:

$GPVTG,79.65,T,,M,2.69,N,5.0,K,A*38

Course Over Ground and Ground Speed Example

Name

Example

Units

Description

Message ID

$GPVTG

VTG protocol header

Course over ground

79.65

degrees

Measured heading

Reference

TRUE

Course over ground

degrees

Measured heading (N/A, null field)

Reference

Magnetic

Speed over ground

2.69

knots

Measured speed

Units

Knots

Speed over ground

5.0

km/hr

Measured speed

Units

Kilometer per hour

Mode

A=autonomous, N= Data not valid,

R=Coarse Position, S=Simulator

Checksum

*38

End of message termination

Figure 16: Course Over Ground and Ground Speed Example

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