As was explained earlier in the chapter, GPS receiver configuration
requires that you enter the correct COM port number or name for
your receiver. This information can be either automatically
detected in the GPS configuration dialog or easily found by the
For Bluetooth devices, open
Devices and Printers
in Windows, find your Bluetooth device, and double-click on it.
tab will display the port number, as shown below.
For USB devices, open
and find your device under
Ports (COM & LPT).
The device name will be followed by the port number, as shown
For Bluetooth devices, the port name typically contains the name of
the GPS receiver that you have connected. An example of the port
name would be “/dev/cu.BT-GPS-38B134-BT-GPSCOM” for the GPS
receiver illustrated below:
For USB devices, the port name typically looks like