Specifications

Command/Response Formats 147
Commands
Query Commands
The general structure of the NMEA query commands is:
$PASHQ,s,c <enter>
where s is one of the 3 character NMEA strings and c is the serial port to which
response message should be sent (A, B, C or D). The serial port field is optional. If a
port is not included, the receiver will send the response to the current port. Unlike the
set commands, the query command will initiate a single response message.
Example: Query POS message and send the response to port D
$PASHQ,POS,D <enter>
Query GSA message and send the response to the current port.
$PASHQ,GSA <enter>
Table 6.78 on page 147 lists the NMEA data message commands. Only the set
command for each NMEA message type is listed in the table, as the description for
the set, query, and response message for each NMEA message are grouped together.
A detailed description of each NMEA command will follow Table 6.78 on page 147.
Table 6.78: NMEA Data Message Commands
Function Command Description Page
Disable Output $PASHS,NME,ALL Disable all messages 148
Check NMEA Output
Settings
$PASHQ,PAR Query receiver parameters 97
Differential information $PASHS,NME,MSG Enable/disable base station messages 166
External Sensors $PASHS, NME,XDR Enable/disable external sensor information 184
Output rate parameter $PASHS,NME,PER Set output interval of NMEA response messages 171
PPS/Photogrammetry $PASHS,NME,PTT
$PASHS,NME,TTT
Enable/disable PPS pulse time tag message
Enable/disable event marker photogrammetry time
tag message
173
179
Position information $PASHS,NME,GDC
$PASHS,NME,GGA
$PASHS,NME,GLL
$PASHS,NME,GXP
$PASHS,NME,POS
$PASHS,NME,RMC
$PASHS,NME,UTM
Enable/disable GPS positions in grid coordinates
Enable/disable GPS position response message
Enable/disable lat/lon message
Enable/disable position computation with time of fix
Enable/disable position message
Enable/disable recommended minimum GPS data
Enable/disable UTM coordinates message
152
154
156
164
171
174
180
Residual information $PASHS,NME,GRS
$PASHS,NME,RRE
Enable/disable satellite range residual information
Enable/disable satellite residual and position error
158
176