RoyalTek RSA-1500L GSV Data Format, RMC-Recommended Minimum Specific Gnss Data, RMC Data Format

Page 16

RSA-1500L User Manual

Table 2-8 GSV Data Format

Name

Example

Units

Description

 

 

 

 

Message ID

$GPGSV

 

GSV protocol header

 

 

 

 

Number of

2

 

Range 1 to 3

Messages1

 

 

 

 

 

 

 

Messages Number1

1

 

Range 1 to 3

 

 

 

 

Satellites in View

07

 

 

 

 

 

 

Satellite ID

07

 

Channel 1(Range 1 to 32)

 

 

 

 

Elevation

79

degrees

Channel 1(Maximum 90)

 

 

 

 

Azimuth

048

degrees

Channel 1(True, Range 0 to 359)

 

 

 

 

SNR (C/No)

42

dBHz

Range 0 to 99, null when not

 

 

 

tracking

 

 

 

 

….

 

 

….

 

 

 

 

Satellite ID

27

 

Channel 4(Range 1 to 32)

 

 

 

 

Elevation

27

degrees

Channel 4(Maximum 90)

 

 

 

 

Azimuth

138

degrees

Channel 4(True, Range 0 to 359)

 

 

 

 

SNR (C/No)

42

dBHz

Range 0 to 99, null when not

 

 

 

tracking

 

 

 

 

Checksum

*71

 

 

 

 

 

 

CR><LF

 

 

End of message termination

 

 

 

 

1Depending on the number of satellites tracked multiple messages of GSV data may be required.

2.1.5 RMC-Recommended Minimum Specific GNSS Data

Table 2-9 contains the values of the following example:

$GPRMC, 161229.487, A, 3723.2475, N, 12158.3416, W, 0.13, 309.62, 120598, ,*10

Table 2-9 RMC Data Format

Name

Example

Units

Description

 

 

 

 

Message ID

$GPRMC

 

RMC protocol header

 

 

 

 

UTC Position

161229.487

 

hhmmss.sss

 

 

 

 

Status

A

 

A=data valid or V=data not valid

 

 

 

 

Latitude

3723.2475

 

ddmm.mmmm

 

 

 

 

N/S Indicator

N

 

N=north or S=south

 

 

 

 

Longitude

12158.3416

 

dddmm.mmmm

 

 

 

 

E/W Indicator

W

 

E=east or W=west

 

 

 

 

Speed Over Ground

0.13

knots

 

 

 

 

 

15

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Contents Version 1.2 2008/01/24 III Figure List Table List Product Features IntroductionRSA-1500L System Block Diagram Product PictureRSA-1500L Technique Specification Technical Specifications Impedance:50ΩW.R Application Circuit Application Circuit ReferenceMechanical Layout Mechanical LayoutHardware interface Pin DefinedDefinition of Pin assignment TXASoftware Interface Nmea V3.0 ProtocolNMEA-0183 Output Messages GGA-Global Positioning System Fixed DataPosition Fix Indicators GLL-Geographic Position -Latitude/LongitudeGLL Data Format $GPGLLGSA-GNSS DOP and Active Satellites GSA Data FormatMode GSV-GNSS Satellites in ViewGSV Data Format RMC-Recommended Minimum Specific Gnss DataRMC Data Format $GPGSV10 VTG Data Format VTG-Course Over Ground and Ground Speed$GPVTG Package Specification PackageContact Information Section Revision History