Dell BT-308 Owner's Manual page 29

Tap the appropriate Bluetooth device. All GPS receivers contain GPS
3
in their identifier. The GPS Port/Baud Checker screen reappears,
listing the current port and baud rate.
Tap OK to use the selected device. The COM Port Setting screen
4
appears.
Tap OK to use the indicated COM Port and Baud Rate. The Map view
5
appears.
Owner's Manual
27