86 G12 OEM Board & Sensor Reference Manual
POS: 3-D Antenna Position
$PASHS,POS,m1,c2,m3,c4,f5
This command allows you to set a 3-D antenna reference position for a differential
base station receiver. m1 is the latitude, c2 is the latitude sector, m3 is the longitude,
c4 is the longitude sector, and f5 is the altitude. Use the $PASHQ,RTC command
to verify that the desired coordinates are in effect.
$PASHS,POS,CUR
This command allows you to set the current computed position as the reference
position for a differential base station receiver. This setting is useful in some
applications which do not require absolute accuracy. Remote receivers getting
differential corrections from a base station whose reference position was entered
using this command can still compute very accurate positions relative to the base
station.
This command is not accepted when a position is not computed.
$PASHQ,POS,[c1]
This command allows you to query for the receiver’s current 3-D position, where
c1 is the optional port designator for the output of the response message. If a port
is not specified, the receiver sends the response to the current port.
$PASHR,POS
The response message is output in the format:
$PASHR,POS,d1,d2,m3,m4,c5,m6,c7,f8,,f9,f10,f11,f12,f13,f14,f15, s16*hh
Table 4.30 defines the parameters.
Table 4.30. $PASHR,POS Message Format
Parameter Description Range
d1 Indicates whether the position solution has
been computed autonomously or with the aid
of RTCM differential corrections:
• 0: Autonomous position
• 1: Corrected position
0, 1
d2 Indicates the number of satellites used in
computing positions
0-12
m1 Current time (UTC) 00-235959.50
m2 Current latitude measured in degrees,
minutes, and decimal minutes
(ddmm.mmmmm)
0°-90°
G12RevD.book Page 86 Tuesday, April 2, 2002 4:33 PM
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