79
Commands
Table 4.23 describes the items in the PAR response message:
Table 4.24. PAR Response Format
Item Description Range
SPDA:5 Serial port A baud rate. Default is 5 (9600) 0 - 9
SPDB:5 Serial port B baud rate. Default is 5 (9600) 0 - 9
GPS:Y...Y Indicates which satellites (1-32) will be used (Y) or ignored (N) in
position computations. Default is Y for all satellites
Y, N
PMD:1 Current position mode setting for the minimum number of
satellites required to compute a position. With default value 1, a
minimum of 3 satellites are needed to compute a position. With 3
satellites, the altitude is fixed (2-D); with 4 or more, the altitude is
computed (3-D)
0 - 3
FIX Current fixed altitude mode setting used when computing a 2-D
position or when there are not enough visible satellites to
compute a 3-D position. Mode 0 (default) Indicates that the
altitude value is either the most recently entered antenna altitude
($PASHS,ALT) or the most recently computed altitude in which
the VDOP value is lower than the VDOP mask
0, 1
ALT Current altitude of the antenna position (meters). Default is
00000.00 meters
-99999.99 to
+99999.99
PDP Current PDOP (Position Dilution Of Precision) mask setting. The
receiver stops computing positions when the calculated PDOP
value exceeds the PDOP mask value. The default setting is 40
00.0 - 99.9
HDP Current HDOP (Horizontal Dilution Of Precision) mask setting.
The receiver stops computing positions when the calculated
HDOP value exceeds the HDOP mask value. Default is 04
00.0 - 99.9
VDP Current VDOP (Vertical Dilution Of Precision) mask setting. The
receiver stops computing positions when the calculated VDOP
value exceeds the VDOP mask value. Default is 04
00.0 - 99.9
ERM This setting indicates the mask values for horizontal and vertical
error in relation to the different positioning modes. The default is
OFF for both autonomous and differential modes which is
represented by 6000,6000,6000,6000.
1 to 6000
PEM Current position elevation mask setting (degrees). The receiver
excludes any satellite from the position computation when its
elevation falls below the elevation mask setting. Default is 05
0° - 90°
SEM This field indicates the secondary elevation mask angle value for
a sector of the sky defined by two azimuth angles. The default is
OFF.
ON, OFF
G12RevD.book Page 79 Tuesday, April 2, 2002 4:33 PM
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