How to Connect the DeLorme Earthmate GPS LT-20 to Your Google Earth for a Great GPS Tracking Map.





Introduction: How to Connect the DeLorme Earthmate GPS LT-20 to Your Google Earth for a Great GPS Tracking Map.

I will show you how to connect a GPS device to the popular Google Earth program, without using Google Earth Plus.

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.

These are a list of items and software you will need to make this occur:

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 Earthmate® GPS Receivers which you can download for free at
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 Earthmate® 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

2. Right clicking again your Emulator located on system tray you see a PORT option
Click it.

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.

Step 3: 3. CLICK OK


4. Open up EarthBridge

Step 4: 5. Click on the œPreferences Tab, and Youll Notice the Following Screen.

5. Click on the Preferences Tab, and youll notice the following screen.

Step 5: Final Step

6. Remember Com Port 2, under Connection Settings select

COM Port : COM2
Bits Per Sec.4800
Data Bits : 8
Parity None
Stop Bits: 1
Flow Control: Hardware

Make sure the boxes to start Google Earth is selected is also checked.

7. Now on the bottom left select:

Connect To GPS Device. And it should start your Google Earth software.
You can change how often Earthbridge checks GPS data by 1,2, or 3 seconds, and will
Show your movement on Google Earth. Im working on a video.

This has been my 1st tutorial on anything I hope its useful and will allow you to have plenty of fun and great ideas. Images will be coming Soon.

Let me know what you think.
Dont forget to rate this site................ whatever it maybe.

Next Tutorial
If youre going to take your laptop with you, you might want to cache (store) your city map from Google Earth to your computer.

Sergio Moore Jr.



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    anybody know where you can download the Delorme Earthmate Serial Port Emulator, or does anybody have a copy the can post??? All links now go to the Garmin site and I haven't been able to find in on there anywhere. Is there a version that works on win 7???

    at this point all when i right click a window pops up saying GPS multiplexer tray application, has stopped working ? HELP

    If any of you are using Windows 7, you can connect to Google Earth directly without having to install Earth Bridge. Just install the DeLorme Serial Emulator according to the instructions here, and then run Google Earth in Windows XP SP3 compatibility mode (Right-click on Google Earth icon, then go to Properties>Compatibility and select from drop-down menu). Then, start GPS in Google Earth by going to Tools>GPS>Realtime(tab). After clicking start, Google Earth should detect the GPS easily.

    I still prefer using Earth Bridge because you can make it not fly to the placemark every time the GPS updates (which gets pretty annoying). To get Earth Bridge to work with Windows 7, set its compatibility mode to Windows XP SP3.

    This procedure works! ... but only if your operating system is Windows XP *and* you are continously connected to the internet. First tried it on my laptop running Win7 (32-bit version). Earthbridge never saw the Delorme Serial Emulator. Another problem you will be up against: Google Earth does not store the 3D map of the earth on your computer. Unless you have a fast internet connection while you are mobile, it will not work. Google Earth uses the internet connection as a 3D map image server.

    i followed ur instructions and earth bridge tells me the output directory does not exist when i try to connect to gps device

    Hay SM Jr. I liked your instructable. I use MS Streets & Trips as well as DeLorme Street Atlas in my car on a Laptop. I'd like to give your instructable a spin only you forgot to explain how to cache a map of the city from Google Earth's map's (free version of GE). Can you help me out with this? How do I cache a map of the city? If I buy GE Plus would the maps be a higher (resolution) quality? Would you cache maps the same way? Would everything else be the same using GE Plus? Thanks for your instructable and your heip.

    Thanks for taking the time to put this together. I'm a little frustrated though. Any idea why it would show "I Am Here" in the Gulf of Guinea instead of my home in Merced, CA ?

    The Gulf of Guinea is Lat/Long 0/0. Check the GPS Status tab in Earthbridge. I suspect you're not connected to the Delorme driver. Earthbridge is sending 0/0 to Google Earth. I have the same problem. If I determine the solution, I'll let you know.

    i don't see why it wouldn't as long as you get a gps signal going in.......let me know either way.