Seatex DPS 132 Installation Manual, rev. 0 Installation
31
Field Description
ddmm.mmmmmm Latitude component of position, in degrees, minutes and fraction of
minutes.
s Latitude sector, N - North or S - South.
dddmm.mmmmmm Longitude component of position, in degrees, minutes and fraction of
minutes.
s Longitude sector, E - East or W - West.
hhmmss.ss UTC of position (hours, minutes, seconds).
s Status, A = valid, V = invalid.
*cc Checksum.
Table 15 GLL_2.0 message fields
GNS Message
The GNS message presents position fix data. The message is as specified in NMEA 0183
versions 2.2, 2.3 and 3.0. The message structure is as follows:
$GNGNS,hhmmss.ss,ddmm.mmmmmm,a,dddmm.mmmmmm,a,c--c,xx,x.x,x.x,x.x,x.x,x.x
*cc
Table 16 describes the GNS message fields.
Field Description
hhmmss.ss UTC of position (hours, minutes, seconds)..
ddmm.mmmmmm Latitude (degrees, minutes and fractions of minutes).
a Latitude sector, N - North or S - South.
dddmm.mmmmmm Longitude (degrees, minutes and fractions of minutes).
a Longitude sector, E - East or W - West.
c--c Mode indicator. The first character indicates the use of GPS satellites. N =
No fix, A = Autonomous mode, D = Differential mode.
xx Total number of satellites in use, 00-99.
x.x HDOP.
x.x Antenna altitude, meters, mean-sea-level (geoide).
x.x Geoidal separation, meters: the difference between the earth ellipsoid and
mean-sea-level.
x.x Age of differential data.
x.x Differential reference station ID.
*cc Checksum.
Table 16 GNS message fields
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