ashtech DG16 Reference Manual page 286

Table 8.39. POS Response Structure (Continued)
Field
f2
f3
f4
f5
f6
f7
f8
f9
s1
*hh
If there is no valid position, POS provides: number of satellites, time, DOPs,
firmware version ID. All other fields are null.
If there are not enough satellites to compute DOP, then the DOP field is null.
Typical Response:
$PASHR,POS,0,06,183805:00,3722.36221,N, 12159.82742, W,
+00016.06,????,179.22,021.21,+003.96+34,06.1,04.2,03.2,01.4,GA0
0*cc
Table 8.40 outlines a typical POS response message.
Item
$PASHR,POS
0
06
183805.00
3722.36221
N
12159.82742
W
+00016.06
266
Description
Site ID
True track/true course over ground in degrees (000.00
to 359.99 degrees)
Speed over ground in knots
Vertical velocity in meters per second
PDOP—position dilution of precision
HDOP—horizontal dilution of precision
VDOP—vertical dilution of precision
TDOP—time dilution of precision
Firmware version ID
checksum
Table 8.40. Typical POS Response Message
Header
Position is autonomous
Number of satellites used in position computation
Time of position computation
Latitude
North
Longitude
West
Altitude in meters
DG14 and DG16 Board & Sensor Reference Manual
Description
Range
4 character string
0 to 359.9
0 to 999.9
± 999.9
0 to 99.9
0 to 99.9
0 to 99.9
0 to 99.9
4 character string
2-character hex