UniTraQ UD-731R User manual

USB Dongle Series Model:UD-731R
UniTraQ International Corp. RoHS compliance.
2010,08, Version 1.0 1
User Manual
USB Dongle Series Model:UD-731R
UniTraQ International Corp. All right reserved, © 2010
2F., No.136, Ziqiang S. Rd., Zhubei City, Hsinchu County 30264, Taiwan (R.O.C.)
TEL：[phone] FAX：[phone]
MADE IN TAIWAN

USB Dongle Series Model:UD-731R
UniTraQ International Corp. RoHS compliance.
2010,08, Version 1.0 2
Contents
1. Introduction....................................................................................................................... 3
2. Package Contents.............................................................................................................3
3. System Requirements....................................................................................................... 3
4. Features............................................................................................................................ 3
5. Specifications.................................................................................................................... 4
5.1 Electronic Characteristics ........................................................................................... 4
5.2 Physical Characteristics.............................................................................................. 5
6. Getting Started.................................................................................................................. 5
6.1 LED Status........................................................................................................... 5
7. Software Installation.......................................................................................................... 6
7.1 Overview.............................................................................................................. 6
7.2 Install USB Driver................................................................................................. 6
7.3 Install GPSView ..................................................................................................11
7.3.1 Install GPSView onto Windows 2000/XP or Vista .................................11
7.3.2 Install GPSView onto Pocket PC.......................................................... 14
8. Application Software Introduction................................................................................... 16
9. Trouble Shooting............................................................................................................. 18
10. APPROVED NMEA MESSAGE.................................................................................... 18
10.1 GGA – GLOBAL POSITIONING SYSTEM FIX DATA .......................................19
10.2 GLL - LATITUDE AND LONGITUDE, WITH TIME OF POSITION FIX AND
STATUS .......................................................................................................................... 20
10.3 GSA - GPS DOPAND ACTIVE SATELLITES...................................................... 21
10.4 GSV - GPS SATELLITE IN VIEW........................................................................ 22
10.5 RMC - RECOMMANDED MINIMUM SPECIFIC GPS/TRANSIT DATA................. 23
10.6 VTG - COURSE OVER GROUND AND GROUND SPEED................................ 25
10.7 ZDA -TIME AND DATA......................................................................................... 26

USB Dongle Series Model:UD-731R
UniTraQ International Corp. RoHS compliance.
2010,08, Version 1.0 3
1. Introduction
The UD-731R is a GPS USB Dongle and it is optimized for good performance and low cost.
Its 44 parallel channels and Venus 5 search bins provide short start-up time and fast signal
acquisition. Having fast time-to-first-fix and high sensitivity, the UD-731R offers good
navigation performance even in urban canyons.
It is compact and easily used with your laptop or mini notebook.
2. Package Contents
UD-731R ………….. ………..x 1
CD-ROM ……………………..x 1
USB EXTENDED CABLE…...x1
3. System Requirements
The UD-731R requires the minimum to run on a laptop:
Operating System: Windows 2000 / XP/Vista
CPU: 500 MHz, Pentium III
System Memory: 128MB RAM
Hard Disk: 50MB free space
4. Features
44 channel to acquire and track satellites simultaneously
Industry-leading TTFF speed
Signal detection better than -158 dBm
SBAS (WAAS/EGNOS) capable
Cold start < 45seconds
Hot start < 1second
USB Interface
Accuracy 5m CEP
Easy-plug-in Notebook
RoHS compliance

USB Dongle Series Model:UD-731R
UniTraQ International Corp. RoHS compliance.
2010,08, Version 1.0 4
5. Specifications
5.1 Electronic Characteristics
Parameter Specification
Receiver Type 44 channels
Re-acquisition sensitivity -155dBm
Tracking sensitivity -158dBm
Cold start sensitivity -135dBm
Receiver frequency 1575.42MHz
Code C/A code
Accuracy
(1) Position
(2) Velocity
5m CEP
0.1m/sec
Startup Time
hot start
warm start
cold start
< 1 sec
< 35 sec
< 45 sec
Signal Reacquisition <1s
Update Rate 1Hz
Operational Limits
(1) Altitude
(2) velocity
< 18,000m
< 500m/s
Dynamics 4G (39.2m/sec2)
Datum WGS-84
Protocol NMEA-0183 V3.01
Serial Interface USB interface
Input Voltage 5V ±5%
Power Consumption 180mW
Connector USB B-type 4P male

USB Dongle Series Model:UD-731R
UniTraQ International Corp. RoHS compliance.
2010,08, Version 1.0 5
5.2 Physical Characteristics
Parameter Specification
Physical dimension 78.62mm X 24.83mm X 11.15mm
Weight 22+-10%g
6. Getting Started
There are only a few simple steps that you need to follow before using your UD-731R:
Install the USB driver onto your laptop using the included CD-ROM .
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 UD-731 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.
1. You must change the default baud rate setting of your mapping software‘s Baud
Rate to 4800, if this is not set then the GPS data cannot be received.
2. Set Baud Rate 4800, Data Bit: 8, Parity: None, Stop Bit: 1, Flow Control: None
6.1 LED Status
The LED flash status:
1. 1 second on/ 1 second off : GPS tracked
2. 1 second on/ 2 seconds off : while tracking

USB Dongle Series Model:UD-731R
UniTraQ International Corp. RoHS compliance.
2010,08, Version 1.0 6
7. Software Installation
7.1 Overview
USB Driver is necessary software which allows you to operate UD-731R on your
computer properly once the device is connected with the computer. USB Driver is different
depending on your operating system you connect to. Therefore, when you connect
UD-731R with your computer, you need to install an appropriate driver for the UD-731R
beforehand. Once you installed the driver properly, you do not need to install again from
the next time.
GPSView is multipurpose GPS utility. Please note that GPSView uses specific NMEA
sentences to display data graphically. For more information on NMEA, please see the
appendix 1. GPSView is a general purpose utility for monitoring the output of a GPS
receiver. Using the NMEA data from the GPS receiver, GPSView will display various
statuses for evaluating GPS which including latitude, longitude, altitude, speed, azimuth,
fix mode and TTFF time. And also can be used to upgrade UniTraQ flash version GPS
receiver.
7.2 Install USB Driver
You need to prepare a PC to install USB driver. The USB driver category depending on
your operating system and then please follow the procedure illustrated below to install
USB driver. Please note this procedure is only for windows XP.
A. Insert the CD into your CD-ROM disk. The installation program should automatically run. If,
the installation program does not initiate, double-click on GPS-Installation.EXE in the root
folder on the CD-ROM. When the main menu appears on the screen, just click on
USB-Driver for XP. If your operating system is vista, please click on USB-Driver for vista.
The installation will begin, and then the install wizard will navigate you to finish installation.

USB Dongle Series Model:UD-731R
UniTraQ International Corp. RoHS compliance.
2010,08, Version 1.0 7
B. Click on Next on the installation welcome dialogue to continue.

USB Dongle Series Model:UD-731R
UniTraQ International Corp. RoHS compliance.
2010,08, Version 1.0 8
C. Review the license agreement information, and select I accept to accept the licensing
terms, and then click on Next to continue. You may click on Back to go to the previous step,
or Cancel to quit.
D. At this point the Installation allows you to change destination folder of CP210X VCP Drive
for XP, if you have a specific reason for doing so. Click on Next to continue. If you want to
install to a different folder, click on Browse. You may click on Back to go to the previous
step, and click on Cancel to quit.

USB Dongle Series Model:UD-731R
UniTraQ International Corp. RoHS compliance.
2010,08, Version 1.0 9
E. On the next dialogue, click on Install to start installation CP210X VCP drive. You may click
on Back to go to the previous step, and click on Cancel to quit.
F. Wait for a few seconds while installation is copying files to your computer. Select Launch
the CP210X VCP Driver installer and then click on Finish to complete the laboratories
CP210X VCP driver installation.

USB Dongle Series Model:UD-731R
UniTraQ International Corp. RoHS compliance.
2010,08, Version 1.0 10
G. On the next dialogue, click on Install to start installation CP210X USB to UART bridge
driver. If you want to install to a different folder, click on Change install location, and click
on Cancel to quit.
H. Wait for a few seconds while installation is copying files to your computer. Click on OK to
complete the laboratories USB to UART bridge driver installation.
I. Click on Next on the installation welcome dialogue to continue.

USB Dongle Series Model:UD-731R
UniTraQ International Corp. RoHS compliance.
2010,08, Version 1.0 11
J. Wait for a few seconds while installation is copying files to your computer. Click on Finish
to complete the PL2303 USB-to-serial driver installation.
7.3 Install GPSView
You need to prepare a PC to install GPSView. The GPSView category depending on your
operating system and then please follow the procedure illustrated below to install
GPSView.
7.3.1 Install GPSView onto Windows 2000/XP or Vista
A. Insert the CD into your CD-ROM disk. The installation program should automatically run. If,
the installation program does not initiate, double-click on GPS-Installation.EXE in the root
folder on the CD-ROM. When the main menu appears on the screen, just click on GPS
View (XP/Vista). The installation will begin, and then the install wizard will navigate you to
finish installation.

USB Dongle Series Model:UD-731R
UniTraQ International Corp. RoHS compliance.
2010,08, Version 1.0 12
B. Click on GPS View(XP/VISTA) on the installation welcome dialogue to continue.
C. Click on Install to continue. You may click on Cancel to quit.

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UniTraQ International Corp. RoHS compliance.
2010,08, Version 1.0 13
D. Click on OK to complete the installation.
E. You can find the icon from StartProgramsUNIGPSAPPgps-view2008.2, or from
C:\Program Files\UNIGPS APP\GPSView\gps-view2008.2.exe. Click on the icon to run
GPSView in your computer.

USB Dongle Series Model:UD-731R
UniTraQ International Corp. RoHS compliance.
2010,08, Version 1.0 14
7.3.2 Install GPSView onto Pocket PC
A. Link to the following Microsoft web-site for downloading Microsoft ActiveSync.
http://www.microsoft.com/windowsmobile/en-us/help/synchronize/activesync45.mspx
B. Install Microsoft ActiveSync onto PC.
C. Connect cradle to PC, and then the ActiveSync should create access between the PC and
pocket PC.
D. Double click on ActiveSync icon, main menu appears on the screen as blow. And then
Click Explore on the pop-up menu.

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UniTraQ International Corp. RoHS compliance.
2010,08, Version 1.0 15
E. Select My Windows Mobile-Based Device on the dialog.
F. Determine the desired destination folder you want. In this example, the GPSView will be
put on Storage Card.
G. Copy GPSViwe-P.exe form CD-ROM to your pocket PC. The GPSViwe-P.exe path is on
the CD-ROMGPS-InstallationPDA. And please note that CD shall be inserted to
CD-ROM disk.

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UniTraQ International Corp. RoHS compliance.
2010,08, Version 1.0 16
8. Application Software Introduction
8.1 GPSView
Double Click on the gpsview.exe. and
Click on the GT-7 Series. Enter the Window below.

USB Dongle Series Model:UD-731R
UniTraQ International Corp. RoHS compliance.
2010,08, Version 1.0 17
Click on “Auto Scan” or Select “COM PORT” which will connect to UD-731R, then Click on
“Start”.
It will display the connection status of GPS and NMEA as shown below.
1. Off the GPS connection
2. Series Selection
3. Open Position Coordinate Window
4. Execute Cold Start
5. Execute Warm Start
6. Execute Hot Start
7. Save NMEA Data (Automatically save in the same Program file)
8. Upgrade Firmware (If upgrading Firmware, save it in the same Program file)

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UniTraQ International Corp. RoHS compliance.
2010,08, Version 1.0 18
9. Trouble Shooting
Satellite signal problem
The following situations are normally if you find the GPS satellite signal is very low or
absolute missing:
There is something cover above.
While you are in a tunnel.
Inside of the building.
Near by buildings.
Put GPS receiver inside the car, some of the sun-control film with metal that
makes microwave can not be radiate.
GPS not fix problem
If you see “GPS not fix” message on the screen after you enable the UD-731R GPS
receiver, please consider the possible problems below:
Wait few minutes. GPS position may cost several minutes.
Make sure the UD-731R GPS receiver is put on a proper place. Some sun-control
film for car may cutoff the satellite signal. You may replace it and try again.
USB driver confliction problem
If you notice mouse cursor is jumping when you plug receiver into USB port, remove the
UD-731R from USB port and plug-in again.
10.APPROVED NMEA MESSAGE
The serial interface protocol is based on the National Marine Electronics Association’s NMEA
0183 ASCII interface specification. This standard is fully define in “NMEA0183, Version 3.01”
The standard may be obtained from NMEA, www.nmea.org

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UniTraQ International Corp. RoHS compliance.
2010,08, Version 1.0 19
10.1 GGA – GLOBAL POSITIONING SYSTEM FIX DATA
Time, position and fix related data for a GPS receiver.
Structure:
$GPGGA,hhmmss.sss,ddmm.mmmm,a,dddmm.mmmm,a,x,xx,x.x,x.x,M,x.x,M,x.x,xxxx*hh<CR><LF>
1 2 3 4 5 6 7 8 9 10 11 12 13
Example:
$GPGGA,060932.448,2447.0959,N,12100.5204,E,1,08,1.1,108.7,M,,,,0000*0E<CR><LF>
Field Name Example Description
1 UTC Time 060932.448 UTC of position in hhmmss.sss format, (000000.00 ~
235959.99)
2 Latitude 2447.0959 Latitude in ddmm.mmmm format ddmm.mmmm
Leading zeros transmitted
3 N/S Indicator N Latitude hemisphere indicator, ‘N’ = North, ‘S’ = South
4 Longitude 12100.5204 Longitude in dddmm.mmmm format
Leading zeros transmitted
5 E/W Indicator E Longitude hemisphere indicator, 'E' = East, 'W' = West
6 GPS quality
indicator
1 GPS quality indicator
0: position fix unavailable
1: valid position fix, SPS mode
2: valid position fix, differential GPS mode
3: GPS PPS Mode, fix valid
4: Real Time Kinematic. System used in RTK mode with
fixed integers
5: Float RTK. Satellite system used in RTK mode. Floating
integers
6: Estimated (dead reckoning) Mode
7: Manual Input Mode
8: Simulator Mode

USB Dongle Series Model:UD-731R
UniTraQ International Corp. RoHS compliance.
2010,08, Version 1.0 20
7 Satellites Used 08 Number of satellites in use, (00 ~ 12)
8 HDOP 1.1 Horizontal dilution of precision, (00.0 ~ 99.9)
9 Altitude 108.7 mean sea level (geoid), (-9999.9 ~ 17999.9)
10 Geoid Separation Geoid separation in meters according to WGS-84 ellipsoid
(-999.9 ~ 9999.9)
11 DGPS Age Age of DGPS data since last valid RTCM transmission in
xxx format (seconds)
NULL when DGPS not used
12 DGPS Station ID 0000 Differential reference station ID, 0000 ~ 1023
NULL when DGPS not used
13 Checksum 0E
Note: The checksum field starts with a ‘*’ and consists of 2 characters representing a hex
number. The checksum is the exclusive OR of all characters between ‘$’ and ‘*’.
10.2 GLL - LATITUDE AND LONGITUDE, WITH TIME OF POSITION FIX AND STATUS
Latitude and longitude of current position, time, and status.
Structure:
$GPGLL,ddmm.mmmm,a,dddmm.mmmm,a,hhmmss.sss,A,a*hh<CR><LF>
1 2 3 4 5 6 7 8
Example:
$GPGLL,4250.5589,S,14718.5084,E,092204.999,A,A*2D<CR><LF>
Field Name Example Description
1 Latitude 4250.5589 Latitude in ddmm.mmmm format
Leading zeros transmitted
2 N/S Indicator S Latitude hemisphere indicator
‘N’ = North
‘S’ = South