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USGlobalsat EB-5631RE User Manual

Page 11

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2012/7/30

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Note:

A valid status is derived from all the parameters set in the software. This includes the minimum

number of satellites required, any DOP mask setting, presence of DGPS corrections, etc. If the

default or current software setting requires that a factor is met, then if that factor is not met the

solution will be marked as invalid.


GLL - Geographic Position-Latitude/Longitude

Note

– Fields marked in italic

red

apply only to NMEA version 2.3 (and later) in this NMEA

message description

Table B-4 contains the values for the following example:

$GPGLL,3723.2475,N,12158.3416,W,161229.487,A,A*41

Table B-4 GLL Data Format

Name

Example

Units

Description

Message ID

$GPGLL

GLL protocol header

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

UTC Position

161229.487

hhmmss.sss

Status

A

A=data valid or V=data not valid

Mode

A

A=Autonomous, D=DGPS,

E=DR

N=Output Data Not Valid

R= Coarse Position

1

S=Simulator

Checksum

*41

End of message termination

1. Position was calculated based on one or more of the SVs having their states derived from

almanac parameters, as opposed to ephemerides.