NMEA Commands 265
NMEA Commands
POS: Position Message
$PASHS,NME,POS,x,c,[f]
Enable or disable NMEA position response message on output port x, c is ON or
OFF, and f is the optional message output rate ranging from 0.05 to 999 seconds
depending on the measurement update rate option installed.
The receiver displays an empty message if no position is computed.
Example
Enter the following command to enable position message on port B.
$PASHS,NME,POS,B,ON
$PASHQ,POS,x
The associated query command is $PASHQ,POS,x where x is the optional output
port.
$PASHR,POS
The response is a message containing information on the most recently computed
position. This response message is in the form:
$PASHR,POS,d1,d2,m1,m2,c1,m3,c2,f1,f2,f3,f4,f5,f6,f7,f8,f9,s*cc
Table 8.39 defines the POS response structure.
Table 8.39. POS Response Structure
Field Description Range
d1 position type:
0 = autonomous
1 = position differentially corrected
0 to 1
d2 Number of satellites used in position computation 3 to 14
m1 Current UTC time, (hhmmss), of position computation
in hours, minutes and seconds
00 to 235959.50
m2 Latitude component of position in degrees, minutes,
and fraction of minutes (ddmm.mmmm)
0 to 90.00000°
c1 Latitude sector: N = North, S = South N or S
m3 Longitude component of position in degrees, minutes,
and fraction of minutes
0 to 180.00000°
c2 Longitude sector: E = East, W = West W or E
f1 Altitude in meters above WGS-84 reference ellipsoid.
For 2-D position computation this item contains the
altitude held fixed.
± 30000.00
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