85
Commands
When positions are output at 20 Hz, the G12 can use a maximum of eight satellites to compute
positions, although the receiver can still track and generate raw data for twelve satellites. When
positions are output at 10 Hz or lower, the G12 can use up to twelve satellites to compute positions.
The G12-L supports a maximum internal update rate of 5 Hz for position and 2 hz for raw data. The
standard G12 supports a maximum internal update rate of 10 Hz for position and raw data. Both the
G12 and the G12-L can be upgraded to support an internal update rate of 20 Hz for position and raw
data, and the G12-L can be upgraded to the 10 Hz rate as well. The [W] option corresponds to the 20
Hz update rate for position and raw data; the [T] option corresponds to the 10 Hz update rate for
position and raw data.
PPO: Point Positioning
$PASHS,PPO,c
Enable/disable point positioning mode, where c is Y (enable) or N (disable). Point
positioning is an averaging algorithm that improves the stand-alone accuracy of a
static point after about 4 hours (Table 4.29).
Example: Enable point positioning:
$PASHS,PPO,Y
$PASHQ,PPO
Query point position.
$PASHR,PPO
The point position response message is in the format:
$PASHR,PPO,c
where c is Y or N
Table 4.29. PPO Parameter Table
Item Description Range
c Enable/disable point position mode Y = enable
N = disable
G12RevD.book Page 85 Tuesday, April 2, 2002 4:33 PM
To Next Page
Loading...