The vehicle dock of the Rocktab U212 optionally supports an external GPS antenna through a standard SMA connector. To work with an external GPS antenna, please make sure that the tablet PC is properly installed on the vehicle dock and the vehicle dock is connected to an external GPS antenna.

When working with a vehicle dock connected to an external antenna, the user can switch the GPS antenna from internal to external from the HotTab menu.


Enable/disable the external GPS antenna:

  1. Launch the HotTab utility .
  2. Tap the Device ON/OFF button.
  3. Check the status color of the external GPS antenna icon :
    Orange: GPS antenna is enabled and using external antenna if available.
    White: GPS antenna is disabled and uses built-in antenna.
  4. If the external GPS antenna is disabled (white), tap the external GPS antenna icon to enable it (orange).