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4e. Connecting a DeLorme Earthmate USB GPS

Created: 12/05/2003
Modified: 10/19/2010

TOPIC

Electronics Hookup and Configuration


DISCUSSION

Introduction
DeLorme includes a simple USB GPS receiver as an option with many of their mapping products. While this GPS has been optimized for use with their products, it can be made to work with any navigation software application, including Maptech's Offshore Navigator (and Offshore Navigator Lite) and Terrain Navigator (and Terrain Navigator Pro.)


First, You Need a Driver
All USB GPSs (including DeLorme's) require a software 'driver' that relays information to and from the GPS, computer, and the various software applications. Depending on the model of the DeLorme USB GPS that you are using, there are two different drivers available.


If you are using a USB Earthmate GPS Receiver:
usbemate.jpg
please visit the following web page to download the driver for this device.
http://www.delorme.com/support/supporttemplate.aspx?id=132
Once downloaded, double-click on the file:
USBEMate2.exe
and follow the on-screen instructions to install the driver. Be sure to select the following installation option:
I will be using Earthmate with DeLorme and/or non-DeLorme mapping programs and need to install USB-to-serial drivers and also Install Drivers on the subsequent screen.


If you are using an Earthmate GPS LT-20 Receiver:
emateLT201.jpg
please visit the following web page to download the driver for this device.
http://support.delorme.com/questions.php?questionid=24
Once downloaded, double-click on the file:
Install_Serial_Emulator.exe
and follow the on-screen instructions to install the driver.


Well, I've found a driver and that's a start…
(with apologies to The Beatles)
Depending on the Maptech Navigation application you are using, the next step varies. However, the basic concept is now to "tell" it where to find the GPS Signal.

Maptech Chart Navigator Pro (or Maptech Chart Navigator Light)
1. From the 'Tools' menu, select 'Options'.
2. Open the 'Instruments' tab.
3. Press Auto Detect.
(If the GPS signal can still not be located, use Port Settings to specify the COM port determined during the driver installation. Also, ensure that the Port Interface is set to NMEA.)
3. Once the signal is detected, OK the settings changes and press "Go To Boat" on Chart Navigator's button bar to locate the vessel.
Related Technical Document: Configuring Chart Navigator Pro (and Light) to the GPS - Basic Instructions.

Maptech Offshore Navigator (or Offshore Navigator Lite)
1. From the 'Vessel/GPS' menu, choose 'Setup', 'GPS Setup Wizard'.
2. Follow the on-screen instructions.
(If the GPS Wizard can not detect the GPS, select 'Setup', 'GPS' from the 'Vessel/GPS' menu. Set the 'Manufacturer' to 'NMEA - generic' and specify the COM port determined during the driver installation. Next, click Port Settings and verify the Baud Rate. Then check 'GPS on' and 'Test.')
3. Once the signal is detected, choose 'Position from GPS' from the 'Vessel/GPS' menu, then click 'Follow Vessel' in the lower left-hand corner of the chart window.
Related Technical Document: Configuring Offshore Navigator (or Offshore Nav. Lite) to the GPS - Basic Instructions.

The CAPN
1. Press the large "Click Here To Find GPS" button to the left of the chart window.
2. Press 'Find GPS'.
(If The CAPN can not detect the GPS, exit The CAPN, and open the GPS.INI file found in the 'C:\Capn Voyager' folder. Edit this file to include the COM port and Baud Rate determined during the driver installation. Save the changes and restart The CAPN)
Note: In versions prior to v8.3.20, The CAPN can not use COM ports higher than 9. If your GPS is connected to COM 10 or higher, reset the drivers for that port so that a lower COM port is used.
Related Technical Document: Configuring The CAPN to the GPS - Basic Instructions.

Maptech Chart Navigator (free chart viewer)
Chart Navigator Viewer is for printing and planning with BSB nautical charts. It can not be used for plotting a position in real-time. GPS functionality is limited to the transfer of routes, waypoints, and tracks to and from handheld GPS units. To configure Chart Navigator Viewer for this purpose, choose 'Setup', 'GPS' from the 'GPS' menu.
Related Technical Document: Configuring Chart Navigator (Free Viewer) to the GPS - Basic Instructions.

Maptech Terrain Navigator (or Terrain Navigator Pro)
1. From the 'GPS' menu, choose 'GPS Setup Wizard'.
2. Follow the on-screen instructions.
(If the GPS Wizard can not detect the GPS, select 'Setup' from the 'GPS' menu. Set the 'Manufacturer' to 'NMEA - generic' and specify the COM port determined during the above driver installation. Also, ensure that the correct baud rate of the GPS is selected in Port Settings. Then press 'Close')
3. Once the signal is detected, choose 'GPS Tracking', 'Start Tracking' from the 'GPS' menu.
Related Technical Document: Configuring Terrain Navigator (or Pro) to the GPS - Basic Instructions.


Related Technical Documents
How do I hook up a GPS receiver to my USB port?
Serial-to-USB Adapter: Determining the COM Port Number.


Troubleshooting Tips from DeLorme
DeLorme Serial Emulation Driver for Earthmate GPS Receivers
Clean Install Instructions for USB Earthmate GPS Third-Party Serial Emulation Driver
Why doesn't Windows XP recognize the USB-to-serial drivers?
Troubleshooting the Earthmate GPS LT-20
"Can't Open Specified USB Port" message
Installing the USB Earthmate Companion Files from the Street Atlas USA 2004 Installation Disc
Stages of Acquiring a Satellite Fix





 


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