179
Commands
The G12 does not output this message unless it computes a position.
If the command is set without a period, the G12 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.
Example
Enable SAT message on port B.
$PASHS,NME,SAT,B,ON
$PASHQ,SAT,[c1]
This command allows you to query for the SAT message, where c1 is the optional
port designator for the output of the response. If a port is not specified, the receiver
sends the response to the current port.
$PASHR,SAT
The SAT message contains information on the number of visible satellites, whether
the satellite is being used in position computations, plus elevation, azimuth, and
signal to noise measurements for each satellite. The message is output in the
format:
$PASHR,SAT,d1,((d2,d3,d4,d5,c6)*d1)*hh
Table 4.105 defines the response message.The data fields for PRN number (d2),
azimuth (d3), elevation (d4), signal to noise ratio (d5), and the used/not used flag
(c6) are repeated for each satellite, using the value in the d1 field as a multiplier.
Table 4.105. $PASHR,SAT Message Format
Field Description Range
d1 The number of satellites locked by the receiver 1 - 12
d2 Satellite PRN number 1 - 32
d3 Satellite azimuth angle 0° - 359°
d4 Satellite elevation angle 0° - 90°
d5 Satellite signal-to-noise ratio (dbHz) 30-55
G12RevD.book Page 179 Tuesday, April 2, 2002 4:33 PM
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