1. Tracking sensitivity: the minimum GNSS signal power at which the module can maintain locked -
keep positioning for at least 3 minutes continuously.
2. Reacquisition sensitivity: the minimum GNSS signal power required for the module to get locked
again within 3 minutes after loss of lock.
3. Cold start sensitivity: the minimum GNSS signal power at which the module can fix position
successfully within 3 minutes after executing cold start command.