iXBlue GAPS - Page 178

GAPS - User Guide
$__GST
$--GST,hhmmss.ss,x.x,. x.x,. x.x,. x.x,. x.x,. x.x,. x.x,*ck
hhmmss.ss
x.x
x.x
x.x
x.x
x.x
x.x
x.x
ck
UTC time of the GGA fix associated with this sentence
RMS value of the standard deviation on pseudo-ranges
Standard deviation of semi-major axis of error ellipse
Standard deviation of semi-minor axis of error ellipse
Orientation of semi-major axis of error ellipse
Standard deviation of latitude error, in meters
Standard deviation of longitude error, in meters
Standard deviation of altitude error, in meters
Hexadecimal checksum ('*' precedes the checksum value)
UTC
UTC yy.mm.dd hh:mm:ss ab
UTC
yy.mm.dd
hh:mm:ss
a
b
Fixed text header
Year month and date
UTC time not GPS time
Integer number representing the position-fix type: (NOT USED)
1 = time only
2 = 1D & time
3 = currently unused
4 = 2D & time
5 = 3D & time
Number of GPS satellites being tracked. (NOT USED)
If the receiver is not tracking satellites, the time tag is based on the receiver clock. In this
case, a and b are represented by “??”. The time readings from the receiver clock are less
accurate than time readings determined from the satellite signals.
$__RMC
$--RMC,hhmmss.ss,A,llll.ll,a,yyyyy.yy,a,x.x,x.x,ddmmyy,x.x,a,a *ck
hhmmss.ss
A
llll.ll
a
yyyyy.yy
a
x.x
x.x
ddmmyy
x.x
a
a
ck
UTC time of the position
Status: A=data valid, V= Navigation receiver warning
Latitude, (NOT USED)
N/S (NOT USED)
Longitude, (NOT USED)
E/W (NOT USED)
Speed over ground, in knots (NOT USED)
Course over ground, in degrees true (NOT USED)
Date (NOT USED)
Magnetic variation (NOT USED)
=E: easterly variation substracts from True course or =W: westerly
variation adds to true course (NOT USED)
Mode indicator (NOT USED)
Hexadecimal checksum ('*' precedes the checksum value)
178 MU-GAPS-AN-005-H - November 2019