Deleting the GNSS Receiver Position
The SecureSync timing system requires the exact geographic position in order to calculate the exact system time from the GNSS signal.
- a GNSS antenna is connected to SecureSync
- the GNSS receiver can track at least four satellites continuously
- and the GNSS receiver it is configured to operate in Standard Mode (see Selecting a GNSS Receiver Mode).
Note: A self survey will require at least 2000 seconds (33 minutes).
The Delete Position command may need to be used if a SecureSync system is physically moved, and it did not self-initiate a new survey automatically
Note: Software versions 5.4.5 and above by default will initiate a resurvey on reboot. See Setting GNSS Receiver Dynamics.
The Delete Position command must also be used when sanitizing a SecureSync unit (ensuring that no trace of position data remains on the unit).
Deleting the GNSS position
To delete the GNSS position:
- Disconnect the GNSS antenna from the SecureSync unit (required only when sanitizing the unit).
- Navigate to Interfaces > References: GNSS Reference.
- Click on the GEAR button next to the GNSS Reference (typically, there is only one reference, numbered "0"). The GNSS 0 window will open:
Locate the Delete Position box, check it, and click Submit.
- SecureSync will initiate a GNSS self survey.
Note: In Mobile Receiver Mode it is NOT possible to delete the position and start the GNSS survey. This feature is only available in Standard Mode and in Single Satellite Mode (see Selecting a GNSS Receiver Mode). In Single Satellite Mode a GNSS survey may take up to 24 hours.