ZED-F9T - Integration Manual
To configure a timing receiver into Survey-in mode (CFG-TMODE-MODE=SURVEY_IN), the following
items are required:
Configuration item
Description
CFG-TMODE-MODE
Receiver mode (disabled, survey-in or fixed)
CFG-TMODE-SVIN_MIN_DUR
Survey-in minimum duration
CFG-TMODE-SVIN_ACC_LIMIT
Survey-in position accuracy limit. The accuracy of given coordinates in 0.0001
meters (i.e. value 100 equals 1 cm)
Table 8: Configuration items used for setting a timing receiver into Survey-in mode
3.1.5.4.2 Fixed position
Here the timing receiver position coordinates are entered manually. Any error in the timing receiver
position will directly translate into timing errors.
To configure into Fixed mode (CFG-TMODE-MODE=FIXED), the following items are relevant:
Configuration item
Description
CFG-TMODE-MODE
Receiver mode (disabled or survey-in or fixed)
CFG-TMODE-POS_TYPE
Determines whether the ARP position is given in ECEF or LAT/LON/HEIGHT
CFG-TMODE-ECEF_X
ECEF X coordinate of the ARP position, coordinate in centimeters
CFG-TMODE-ECEF_Y
ECEF Y coordinate of the ARP position, coordinate in centimeters
CFG-TMODE-ECEF_Z
ECEF Z coordinate of the ARP position, coordinate in centimeters
CFG-TMODE-LAT
Latitude of the ARP position, coordinate in 1e-7 degrees
CFG-TMODE-LON
Longitude of the ARP position, coordinate in 1e-7 degrees
CFG-TMODE-HEIGHT
Height of the ARP position, coordinate in centimeters
CFG-TMODE-ECEF_X_HP
High-precision ECEF X coordinate of the ARP position, coordinate in 0.1 millimeters
CFG-TMODE-ECEF_Y_HP
High-precision ECEF Y coordinate of the ARP position, coordinate in 0.1 millimeters
CFG-TMODE-ECEF_Z_HP
High-precision ECEF Z coordinate of the ARP position, coordinate in 0.1 millimeters
CFG-TMODE-LAT_HP
High-precision latitude of the ARP position, coordinate in 1e-9 degrees
CFG-TMODE-LON_HP
High-precision longitude of the ARP position, coordinate in 1e-9 degrees
CFG-TMODE-HEIGHT_HP
High-precision height of the ARP position, coordinate in 0.1 millimeters
CFG-TMODE-FIXED_POS_ACC
Fixed position 3D accuracy estimate
Table 9: Configuration items used for setting a timing receiver into fixed mode
Once the receiver is set in fixed mode, select the position format to use: either LLH or ECEF with
optional high precision (mm) coordinates compared to the standard cm value.
For example, with CFG-TMODE-POS_TYPE=ECEF the timing receiver antenna position can be
entered to cm precision using CFG-TMODE-ECEF_X, CFG-TMODE-ECEF_Y, CFGTMODE-ECEF_Z.
For high precision (mm) coordinates use CFG-TMODEECEF_X_HP, CFG-TMODE-ECEF_Y_HP, CFG-
TMODE-ECEF_Z_HP. The same applies with corresponding coordinates used with CFG-TMODE-
POS_TYPE=LLH.
If the timing receiver is moved during operation then new position coordinates must be
configured.
3.1.5.5 Master reference station
When the ZED-F9T high accuracy timing receiver acts as a master timing station, it sends RTCM
3.3 differential corrections to slave receivers. Corrections are generated after a timing fix calculation
in order to remove the master receiver's clock offset.
3.1.5.5.1 Master reference station: RTCM output configuration
At this point the timing receiver should report a TIME fix, not a 3D fix.
UBX-19005590 - R01
3 Receiver functionality
Page 14 of 80
Advance Information
