Seatex DPS 200 Installation Manual, rev. 4 Installation
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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 fix data for single or combined satellites navigation systems
(GNSS). 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, the
second the use of Glonass 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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