I don't have a big budget so I can guarantee that this will be as cheap possible.
Step 1: List of Software You Will Need.
1. Google EarthGoogle Earth download it for free at Google.
2. EarthbridgeEarthbridge a great free program that allows your GPS. To communicate with Google Earth.
3. DeLorme Serial Emulation Driver for EarthmateÃÂ® GPS Receivers which you can download for free at DeLorme.com
4. and of Course your Delorme Earthmate LT-20 GPS.
I am now going to assume you have all these programs downloaded unto your computer at this time.
The 1st thing you want to do is, to make sure your Delorme GPS device is communicating with your DeLorme Serial Emulation Driver for EarthmateÃÂ® after by opening your serial Emulator, which if installed properly, would be on your taskbar. Right click and click monitor.
This Screen will pop up now.
Step 2: 2. Right clicking again your Emulator located on system tray you see a PORT option
You will now notice com port 2 is NMEA the protocol the GPS system will use to communicate with Earthbridge, and Earthbridge to Google Earth. Com port 3 and 5 to remain OFF.