RoyalTek RSA-1500L user manual VTG-Course Over Ground and Ground Speed, VTG Data Format, $Gpvtg

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RSA-1500L User Manual

Course Over

309.62

degrees

True

Ground

 

 

 

 

 

 

 

Date

120598

 

ddmmyy

 

 

 

 

Magnetic Variation

 

degrees

E=east or W=west

 

 

 

 

Mode

A

 

A=Autonomous, D=DGPS, E=DR

 

 

 

 

Checksum

*10

 

 

 

 

 

 

2.1.6 VTG-Course Over Ground and Ground Speed

Table 2-10 contains the values of the following example: $GPVTG, 309.62, T, , M, 0.13, N, 0.2, K*6E

Table 2-10 VTG Data Format

Name

Example

Units

Description

 

 

 

 

Message ID

$GPVTG

 

VTG protocol header

 

 

 

 

Course

309.62

degrees

Measured heading

 

 

 

 

Reference

T

 

True

 

 

 

 

Course

 

degrees

Measured heading

 

 

 

 

Reference

M

 

Magnetic

 

 

 

 

Speed

0.13

knots

Measured horizontal speed

 

 

 

 

Units

N

 

Knots

 

 

 

 

Speed

0.2

km/hr

Measured horizontal speed

 

 

 

 

Units

K

 

Kilometer per hour

 

 

 

 

Mode

A

 

A=Autonomous, D=DGPS, E=DR

 

 

 

 

Checksum

*6E

 

 

 

 

 

 

CR><LF

 

 

End of message termination

 

 

 

 

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Contents Version 1.2 2008/01/24 III Figure List Table List Introduction Product FeaturesProduct Picture RSA-1500L System Block DiagramTechnical Specifications Impedance:50Ω RSA-1500L Technique SpecificationW.R Application Circuit Reference Application CircuitMechanical Layout Mechanical LayoutPin Defined Hardware interfaceTXA Definition of Pin assignmentNmea V3.0 Protocol Software InterfaceNMEA-0183 Output Messages GGA-Global Positioning System Fixed DataGLL-Geographic Position -Latitude/Longitude Position Fix IndicatorsGLL Data Format $GPGLLGSA Data Format GSA-GNSS DOP and Active SatellitesMode GSV-GNSS Satellites in ViewRMC-Recommended Minimum Specific Gnss Data GSV Data FormatRMC Data Format $GPGSV$GPVTG VTG-Course Over Ground and Ground Speed10 VTG Data Format Package Package SpecificationContact Information Section Revision History