ashtech GG Surveyor, Reference Manual

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138 GG Surveyor GPS+GLONASS Reference Manual
Table 6.48 outlines a typical GLL response message.
GRS: Satellite Range Residual Message
$PASHS,NME,GRS,x,s
Enable/disable NMEA satellite range residual response message to port x, where x is
the output port, and s is ON or OFF. This message is not output unless a position is
computed.
Example: Enable GRS message on port B
$PASHS,NME,GRS,B,ON
$PASHQ,GRS,x
The associated query command is $PASHQ,GRS,x where x is the optional output
port. This message does not output unless a position is computed.
Example: Output GRS message on port B
$PASHQ,GRS,B
$GPGRS/$GLGRS
The response message for the set and query commands is output in two messages with
different headers. The first message contains GPS residual information, and is in the
form:
$GPGRS,m1,d1,n(f1)*cc
The second message contains GLONASS residual information, and is in the form:
$GLGRS,m1,d1,n(f1)*cc
Table 6.48: Typical GLL Response Message
Item Significance
$GPGLL Header
3722.36223 Latitude
N North
12159.82741 Longitude
W West
170003 UTC of position
A Valid
7F Message checksum in hexadecimal