ND-100 USB GPS Dongle  
User’s Guide 
 
 
 
 
 
 
 
 
 
 
 
 
USGlobalSat, Inc. 
1308 John Reed Court, City of Industry, CA 91745 
Tel: 626-968-4145 / Fax: 626-968-4373 
oem@usglobalsat.com 
www.usglobalsat.com 
 
Specifications subject to change without notice 
Globalsat Technology Corporation 
16F., No. 186, Jian-Yi Road, Chung-Ho City, Taipei 
Hsien 235, Taiwan  
Tel: 886-2-8226-3799/ Fax: 886-2-8226-3899 
service@globalsat.com.tw 
www.globalsat.com.tw 
 
 
 
DOCUMENT REVISIONS 
REV NO. 
0.1 
0.2 
0.3 
0.4 
0.5 
 
BY 
TWG 
USG 
TWG 
TWG 
USG 
DATE 
09-01-2008 
09-16-2008 
09-22-2008 
09-24-2008 
09-24-2008 
DESCRIPTION 
Initial document 
Reformatted to USG Layout 
Add SYSTEM  REQUIREMENTS 
SYSTEM REQUIREMENTS text modify 
Text modifications 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
© 2008  Globalsat Technology Corporation/USGlobalsat, Inc. All rights reserved. The Globalsat logo is a trademark 
of  Globalsat  Corporation.  Windows  is  a  registered  trademark  of  Microsoft  Corporation.    Acrobat  is  a  registered 
trademark  of  Adobe  Systems  Incorporated.    Mac  is  a  registered  trademark  of the  Apple  Corporation.  All  other 
trademarks or registered trademarks are acknowledged as the exclusive property of their respective owners. 
 
 
All rights reserved. No part of this manual may be reproduced, transmitted, copied, or stored in any storage medium, 
for  any  purpose,  without  prior  written  consent  from  Globalsat  Technology  Corporation  or  USGlobalsat,  Inc.  
Globalsat/USGlobalsat  hereby  grants  the  right  to  download  one  (1)  copy  of  this  manual  onto  a  hard  drive  for 
personal use. This manual is copyrighted and may contain proprietary information that is subject to change without 
notice.  
 
 
 
 
 
 
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PACKAGE CONTENTS.........................................................................................................................4
Table of Contents 
SYSTEM REQUIREMENTS..................................................................................................................4
WELCOME.............................................................................................................................................4
1.  GETTING STARTED ........................................................................................................................5
2.  INSTALLING THE USB DRIVER FOR WINDOWS LAPTOP ........................................................5
3.  COM PORT VERIFICATION (Windows) .........................................................................................6
4.  INITIALIZING YOUR GPS RECEIVER............................................................................................7
5.  USING / TESTING YOUR GPS RECEIVER (Windows).................................................................7
6.  UNINSTALLING THE USB DRIVER (Windows) .............................................................................8
7.  FAQ’s.................................................................................................................................................8
8.  CONTACT INFORMATION..............................................................................................................9
9.  SAFETY AND LEGAL NOTICES...................................................................................................10
10.  LIMITED WARRANTY..................................................................................................................10
11.  ND-100 SPECIFICATIONS ..........................................................................................................12
12.  FCC NOTICE ................................................................................................................................13
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
PACKAGE CONTENTS 
 
ND-100 Main Unit 
 
USB Cable 
CD-ROM  (User Guide, Driver, etc) 
 
 
Quick Start Guide 
Note: 
If any item is found to be damaged or missing, please contact your local retailer for assistance. 
 
SYSTEM REQUIREMENTS 
The ND-100 requires the minimum to run on a laptop: 
           Operating System: Windows 2000 / XP / Vista 
           CPU: 500 MHz, Pentium III 
           System Memory (RAM): 128MB RAM 
           Hard Disk: 50MB free space 
           Display: 1024x768, "16-bit High Color" screen 
 
WELCOME 
Thank you for your purchase of the GlobalSat ND-100 USB Dongle GPS Receiver.  The ND-100 is a 
compact  and  portable  device,  which  allows  you  to  carry  a  GPS  receiver  for  use  on  your  laptop 
whenever you travel.  The ND-100 requires no battery or cables, only your favorite NMEA compliant 
navigation software is all that’s needed to turn a laptop into a powerful navigation system. 
Works with Windows, Mac and Linux O/S notebooks and laptops.  If you need navigation software, you 
can check-out www.usglobalsat.com under the Navigation Software section for recommendations.  
 
 
 
 
 
 
1.  GETTING STARTED 
There are only a few simple steps that you need to follow before using your ND-100:  
• 
Install  the  USB  driver  onto  your  laptop  using  the  included  CD-ROM  (the  files  can  also  be 
downloaded directly from www.usglobalsat.com). 
•  Plug the GPS receiver into your laptop’s USB port. 
NOTE: From within your mapping or navigation software (including the supplied GPS Information utility), 
you will need to manually configure the COM port that was assigned to the ND-100 GPS receiver so 
that  proper  communication  between  the  GPS  receiver  and  a  mapping  program  can  occur.  Most 
software requires that you manually configure the COM port setting for any GPS device being used. 
IMPORTANT:  
1.  You must change the default rate setting of your mapping software‘s Baud Rate to 38400, if this is 
not set then the GPS data cannot be received.  
2.  Set Baud Rate 38400, Data Bit: 8, Parity: None, Stop Bit: 1, Flow Control: None 
 
2.  INSTALLING THE USB DRIVER FOR WINDOWS LAPTOP  
1.  Place the product CD-ROM into your CD-ROM drive.  
2.  Auto-run should detect the CD and bring up the following screen below. 
3.  Click on the button titled “Install Driver” from the main screen as shown above. 
4.  Should “Auto-Run” be disabled on your PC, use Windows Explorer or File Manager to locate the 
file  titled  “PL2303_XP2KME98Driver_Setup.exe”  and  “PL2303_VistaDriver_Setup.exe”  in  the 
\WIN\USB Driver\ directory of the CD-ROM and click to launch the install process. 
5.  You should see these two files: 
 
                  
 
If you are using Windows Vista, please double click on “PL-2303 Vista Driver Installer.exe” to begin 
installation. Follow the instructions to complete the installation process. If you are using Windows 
XP  or  2000,  double  click  on  “PL-2303  Driver  Installer.exe”  to  begin  installation.  Follow  the 
instruction to complete the installation process. 
 
6. 
 
 
3.  COM PORT VERIFICATION (Windows) 
1.  Once your USB Driver has been installed, you will need to confirm which COM Port your PC 
has assigned to it in order to properly configure any software that will be utilizing the GPS data 
being received. 
2.  Your USB GPS MUST be plugged into your USB port at this time. 
3.  Using Window’s Control Panel, select System > Hardware > Device Manager 
4.  Then look under the heading of: PORTS (Com & LPT)  
5.  There should be a listing for:  Prolific Serial-to-USB Com Port (COM x) 
(where “x” is the number your PC has assigned the USB GPS receiver). 
6.  Once you have identified the COM port number, any software that you utilize must be 
configured to read GPS data from this COM port. 
We strongly suggest that you first test your USB GPS with the included MiniCDU utility program to 
confirm that the GPS receiver is functioning properly on your PC and that you have successfully 
configured the right COM Port setting.  Once this has been done, close the MiniCDU program and 
start your application for COM port configuration. 
NOTE: By default, your PC will not allow you to run multiple applications from a single COM port. It 
is important that you close any previously opened GPS application before switching to another 
GPS application as the GPS receiver and data will not be found by the new program.   
There are special utilities available to split data into multiple COM ports for use by more than one 
application simultaneously. See: http://franson.com/gpsgate/ 
 
 
4.  INITIALIZING YOUR GPS RECEIVER 
Before using your ND-100 receiver for navigation (especially for the first time), the receiver must obtain 
a local GPS fix (coordinates) of the current position.  To do this, take your laptop (with your USB driver 
and the mapping software loaded and configurable) to an open area that has a clear view to the sky 
(such as a park or empty field).  Start your software (or the included MiniCDU utility program) and wait 
for initialization of the GPS to complete.  This may take a few minutes depending on various factors 
such as the distance of the current coordinates from the last time the GPS receiver was activated, GPS 
signal strength and surrounding terrain (tall trees and buildings can block the satellite signals). Once the 
RAW GPS data is displayed onto the screen, if applicable for your software, a fix has been initialized 
(blue  LED  on  the  GPS  will  also  start  to  flash).    In  some  cases  initialization  can  take  up  to  several 
minutes depending on the conditions mentioned above before complete GPS data will be displayed on 
the screen.  
Coordinates with scrolling zeros mean that the port connection is complete but the satellite data is not 
being received yet (possibly still initializing or in a bad area for satellite reception).   
5.  USING / TESTING YOUR GPS RECEIVER (Windows) 
Once the USB GPS receiver’s driver and your personal mapping software have been installed and 
configured properly, you can begin to use your navigation system by plugging the USB GPS into your 
laptop’s USB port and launching your mapping software.  If you don’t have a mapping, or navigation 
software,  we’ve  included  a  GPS  test  utility  called  “MiniCDU”  for  the  purpose  of  confirming  your 
installation and configuration.  This utility can be installed by clicking the MiniCDU.exe file from the Win 
directory on the CD-ROM or downloaded from our web-site www.usglobalsat.com.  
LED Status indicator on the ND-100 
LED OFF: GPS receiver is off (no power). 
LED ON (solid): No fix, searching for GPS signals.  
LED FLASHING: Position fix established and GPS signals are being received. 
 
Always select an area in the vehicle where the GPS unit will be secure and not obstruct normal driving, 
visibility and safety, but still maintaining a “view to the sky” in order to receive satellite data.  
 
It is recommended that you first load and test your GPS receiver with the MiniCDU.exe.  This process 
will confirm you have found correct COM port number and have configured it properly.   
1. Run MiniCDU.exe to load the utility. 
2.  Enter the proper COM port for your GPS device (see COM Port Verification above)   
3.  Set COM port to Baud rate: 38400  
4.  If no errors have been made in configuration, there should be GPS data being displayed in the     
window, which is confirmation that the communication between the GPS device and the “MiniCDU” 
software is working properly. 
5.  If there is no GPS data displayed (or data with multiple zeros in them), please exit the software and 
unplug the GPS receiver from the USB port and reinsert it after 10 seconds to reset the device. 
 
 
NOTE:  Configuration  (or  selection)  of  an  assigned  COM  port  for  the  GPS  device  from  within  your 
mapping or charting software must be completed whenever using the software for the first time. 
 
6.  UNINSTALLING THE USB DRIVER (Windows) 
To uninstall the ND-100 driver, click  the Windows START button >>PROGRAMS>>PL-2303 USB-
Serial Driver and select UNINSTALLER from the menu. 
 
 
 
7.  FAQ’s 
 
I am not getting GPS data into my application. 
1.  Check your DEVICE MANAGER to confirm the COM Port number assigned to the GPS 
Receiver (it will be listed under the PORTS (COM & LPT) heading as Prolific Serial-to-USB 
Comm.  Then be sure this is the same COM port number configured in your application. 
2.  Be sure your Baud rate is configured correctly at: 
Baud Rate: 38400 
  Data bit: 8 
Parity: None 
Stop Bit: 1 
Flow Control: None 
3.   Re-boot your computer and then insert the USB GPS into a USB port.   
4.   Configure the MiniCDU utility with the correct COM Port and test your GPS receiver first     
before using it in your application. 
  
Will the ND-100 work with Street Map, Marine Chart or Aviation software?