From LCOS 8.80, you have the option of retrieving the time for the device via GPS automatically as an alternative to an NTP server or ISDN. Prerequisites for the obtaining the device time from GPS are:
- The operating mode of the 3G/4G modem is set to WWAN (2.23.7.2 Operating
- The GPS module is enabled (2.40.1 Operating)
- The Fetch method for the device time is set to GPS (2.14.1 Fetch method
The current GPS time is to be found in LANmonitor (Display of GPS time) or the device status area (1.63.3 Timestamp (GPS)).
Note: This feature is available only on devices with internal WWAN module from Sierra. Please check the specifications for your model to see whether your device supports this function.
Note: The retrieval of GPS time requires an active SIM card in the device. The time is only available once the device has successfully gained a GPS fix. This requires the connection to at least four satellites in sufficient quality.
Note: The time received from GPS may differ by a few seconds from the actual time due to run-time variations and the non-observance of leap seconds in the GPS network.