CSI Wireless Vector Sensor, Reference Manual

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Vector Sensor Reference Manual
73
Table 6-3 GPS Commands
Message Description
$JASC,GP This command is used to configure the NMEA message output of the GPS engine
$JAGE A command used to configure the maximum age of DGPS corrections
$JOFF This command is used to turn off all data output by the GPS engine
$JMASK This command allows you to modify the cut-off angle for tracking of GPS satellites
$J4STRING This command allows you to configure the GPS for output of the GPGGA, GPGSA, GPVTG,
and GPZDA messages at a specific baud rate
$JSMOOTH This command is used to change the carrier smoothing interval from long to short.
The following subsections provide detailed information relating to the use of each command.
Note - Please ensure that you save any changes that you wish to survive beyond the
current power-up by using the $JSAVE command and wait for the ‘
$> Save Complete’
response.
6.4.1 $JASC
Using this command, you may turn GPS data messages on at a particular update rate or turn it off.
When turning messages on, you have the choice of various update rates available, depending on
what your requirements are.
This command has the following layout.
$JASC,msg,r[,OTHER]<CR><LF>
Where ‘msg’ is the name of the data message and ‘r’ is the message rate, as shown in the table
below. Sending the command without the optional ‘,OTHER’ data field will enact a change on the
current port.
Sending a command with a zero value for the ‘r’ field turns off a message.
msg r (Hz) Description
GPGGA 5, 1, 0, or .2 Global Positioning System Fix Data
GPGLL 5, 1, 0, or .2 Geographic Position - Latitude/Longitude
GPGSA 1 or 0 GNSS (Global Navigation Satellite System) DOP and Active
Satellites
GPGST 1 or 0 GNSS Pseudorange Error Statistics
GPGSV 1 or 0 GNSS Satellites in View
GPRMC 5, 1, 0, or .2 Recommended Minimum Specific GNSS Data
GPRRE 1 or 0 Range residual message
GPVTG 5, 1, 0, or .2 Course Over Ground and Ground Speed
GPZDA 5, 1, 0, or .2 Time and Date
HDT 10, 5, 1, 0, or .2 RTK-derived GPS Heading
ROT 10, 5, 1, 0, or .2 RTK-derived GPS rate of turn
INTLT 1 or 0 Internal tilt sensor measurement
HPR 10, 5, 1, 0, or .2 Proprietary message containing heading and roll or pitch
When the ‘,OTHER’ data field is specified (without the square brackets), this command will enact a
change on the other port.