Specifications

Command/Response Formats 217
Commands
User Coordinate Transformation (UCT)
Commands
The User Coordinate Transformation library includes user-defined transformation
data (e.g., datums, grid systems, map projection parameters, etc.) and transformation
functions.
The user is able to:
define and store one set of transformation parameters
perform the transformation based on these parameters
The UCT commands include:
Transformation Parameters
Transformation Selection
Coordinate Output
Table 6.152 on page 217 list the UCT commands available for your receiver:
Table 6.152: UCT Commands
Function Command Description Page
Transformation
Parameters
Setting
$PASHS,UDD
$PASHQ,UDD
$PASHS,UDG
$PASHQ,UDG
Set datum-to-datum transformation parameters
Query 7 parameters of datum-to-datum transformation
Set datum-to-grid projection parameters
Query parameters of datum-to-grid projection (variable
parameters)
220
221
221
226
Transformation
Selection
$PASHS,DTM
$PASHQ,DTM
$PASHS,GRD
$PASHQ,GRD
$PASHS,HGT
$PASHQ,HGT
Select datum to use (preset or user-defined)
Query datum used
Select grid (map projection) mode
Query grid (map projection) mode
Select height model to use
Query height model to use
218
218
219
219
220
220
Coordinates
Output
$PASHS,NME,GGA
$PASHS,NME,GLL
$PASHS,NME,POS
$PASHS,NME,GXP
$PASHS,NME,GDC
$PASHQ,GDC
$PASHS,NME,UTM
$PASHQ,UTM
Enable/disable geographic position output
Enable/disable latitude/longitude response message
Enable/disable NMEA postion response message
Enable/disable the horizontal position message
Enable/disable user-defined grid coordinates output
Query user-defined grid coordinates
Enable/disable UTM grid coordinates output
Query UTM grid coordinates
154
156
171
164
152
152
180
180