NMEA Commands 229
NMEA Commands
Typical Response message:
$GPALM,26,01,01,0899,00,1E8C,24,080B,FD49,A10D58,EB4562,BFEF85,
227A5B,011,000*0B
CRT: Cartesian Coordinates Message
$PASHS,NME,CRT,x,c,[f]
This command outputs the computed Cartesian coordinates and velocities. Enable
or disable the 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.
If the receiver is not computing a position, it outputs an empty message.
If the command is set without a period, the DG16 uses the period set by the
$PASHS,NME,PER command If the $PASHS,NME,PER command is issued after
this message period has been set, the period resets to the PER setting.
Table 8.3. Typical ALM Response Message
Item Significance
$GPALM Header
26 Total number of messages
01 Number of this message
01 Satellite PRN Number
0899 GPS week number
00 Satellite Health
1E8C Eccentricity
24 Almanac Reference Time
080B Inclination angle
FD49 Rate of ascension
A10D58 Root of semi-major axis
EB4562 Argument of perigree
BFEF85 Longitude of ascension mode
227A5B Mean anomaly
011 Clock parameter
000 Clock parameter
*0B checksum
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