Test Garmin GPS Receiver or Product Using Google Earth Pro

Google Earth Pro is a free mapping program offered by Google that can be used with external GPS devices. It is compatible with Garmin Bluetooth, Serial and USB receivers, and products that have Spanner Mode. Because of this, it can be a quick and easy diagnostic tool to determine if a GPS receiver or product is communicating with the computer and receiving a GPS signal.

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Testing a GPS Receiver or Product with Google Earth Pro

NOTE: Google Earth Pro requires an internet connection to function and display maps. Both sets of steps below are provided as a courtesy by Garmin. Our troubleshooting is limited to Garmin device operation and not the function of Google Earth Pro. If these steps do not work, reach out to Google for further assistance with their program.

1. Download and install Google Earth Pro.

2. Connect the device (via Bluetooth or USB cable).

   NOTE: For devices that support Spanner Mode, select No when prompted to use Mass Storage or MTP.

3. Open Google Earth Pro.

4. Select Tools > GPS.

5. Select the Realtime tab.

6. Select the appropriate GPS protocol:

   • Select NMEA if using a Bluetooth or Serial device.

   • Select if using a USB device.

7. Place a checkmark next to Automatically follow the path.

8. Select Start.

9. Google Earth Pro will scan the different COM/USB ports of the computer until it finds the port used by your GPS.

10. Once the GPS is connected and has a satellite signal, the map will automatically zoom in to your current position.

    • Also, Your Realtime GPS Position will show in Places > Temporary Places.

If Google Earth Pro does not find your GPS device when attempting the above steps, try using different USB ports or a different USB cable.

Another possible workaround is provided below.

1. Start Realtime GPS in Google Earth Pro using the steps above.

2. Check which COM port Google Earth Pro is attempting to read from.

   

3. Stop Realtime GPS in Google Earth Pro.

4. Using a program like PuTTY, open that same COM port.

   

5. Start Realtime GPS in Google Earth Pro. It should start looking for other ports.

6. Once it finds the one reporting GPS, PuTTY can be closed.