Having fast time-to-first-fix and high sensitivity, the UD-731N offers good navigation performance even in urban canyons. The UD-731N is built in with NAND FLASH memory for users to utilize it for memory storage. The navigation software can also install in the built-in memory to support full navigation function with GPS receiver in the same device.
USB Dongle Series Model:UD-731N 5.2 Physical Characteristics Parameter Specification Physical dimension 78.62mm X 24.83mm X 11.15mm Weight 22+-10%g UniTraQ International Corp. RoHS compliance 2011,01, Version 1.1...
USB Dongle Series Model:UD-731N 6. Getting Started There are only few simple steps that you need to follow before using your UD-731N: Install the USB driver onto your laptop using the included CD-ROM . Plug the GPS receiver into your laptop’s USB port and assign the COM port. From...
7. Operations 7.1 Overview UD-731N is an easy to use device with GPS receiver and memory built-in together. After you install the USB driver on the computer or laptop, both GPS receiver and maeory can work with the computer or laptop normally.
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USB Dongle Series Model:UD-731N C. The driver is on Installing UniTraQ International Corp. RoHS compliance 2011,01, Version 1.1...
D. On the next dialogue, click Finish to complete driver installation 7.3 Device Manage Confirmation and Memory Usage: Plug UD-731N into PC, the GPS COM port will appear in Device Manage. At the same time the Removable Disk will appear, therefore you can click OK button to utilize storage memory.
USB Dongle Series Model:UD-731N 8. Application Software Introduction 8.1 u-Center The u-Center application software is provides by u-blox to support the devices with their GPS chipset built-in. This section describes the simple and quick user guides to this useful program. Please refer to the user manual of this software for more details.
USB Dongle Series Model:UD-731N 8.1.2 Starting u-center After a successful installation, u-center will start up as shown in Figure 1: Figure 1: Start Display 8.1.3 Configuring the Serial Connection When u-center is started for the first time, the COM port needs to be initialized. u-center supports the COM-Settings listed below and all u-blox GPS receivers are pre-configured this way.
USB Dongle Series Model:UD-731N Figure 2: Start Display after a successful connection 8.1.4 Main Frame The Main Frame is the primary display screen of u-center. It displays all tool bars and some of the information provided by the GPS receiver. In the status bar, information about communication, UTC time, Operating Time, used protocol (NMEA or UBX), used file, etc.
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USB Dongle Series Model:UD-731N Protocol Information: This box indicates the current message set that is being used to communicate with the GPS receiver. This can be the NMEA-0183 standard or the UBX protocol. The UBX protocol provides more extensive information with the receiver.
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-731N GPS receiver, please consider the possible problems below: ...
USB Dongle Series Model:UD-731N 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 “NMEA 0183, Version 2.3” The standard may be obtained from NMEA, www.nmea.org...
USB Dongle Series Model:UD-731N 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 Satellites Used...
USB Dongle Series Model:UD-731N Field Name Example Description Latitude 4250.55899 Latitude in ddmm.mmmmm format Leading zeros transmitted N/S Indicator Latitude hemisphere indicator ‘N’ = North ‘S’ = South Longitude 14718.50849 Longitude in dddmm.mmmmm format Leading zeros transmitted E/W Indicator Longitude hemisphere indicator...
USB Dongle Series Model:UD-731N 10.3 GSA - GPS DOP AND ACTIVE SATELLITES GPS receiver operating mode, satellites used in the navigation solution reported by the GGA or GNS sentence and DOP values. Structure: $GPGSA,A,x,xx,xx,xx,xx,xx,xx,xx,xx,xx,xx,xx,xx,x.x,x.x,x.x*hh<CR><LF> 1 2 3 3 3 3 3 3 3 3 3 3 3 3 4 5 6 Example: $GPGSA,A,3,01,20,19,13,,,,,,,,,40.4,24.4,32.2*0A<CR><LF>...
USB Dongle Series Model:UD-731N 10.4 GSV - GPS SATELLITE IN VIEW Number of satellites in view, PRN number, elevation angle, azimuth angle, and C/No. Four satellites details are transmitted per message. Additional satellite in view information is send in subsequent GSV messages.
USB Dongle Series Model:UD-731N 10.5 RMC - RECOMMANDED MINIMUM SPECIFIC GPS/TRANSIT DATA Time, date, position, course and speed data provided by a GNSS navigation receiver. Structure: $GPRMC,hhmmss.sss,A,dddmm.mmmmm,a,dddmm.mmmmm,a,x.x,x.x,ddmmyy,x.x,a,a*hh<CR><L F> 6 7 8 10 11 12 13 Example: $GPRMC,092204.999,A,4250.55899,S,14718.50849,E,0.00,89.68,211200,,A*25<CR><LF> Field Name Example...
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USB Dongle Series Model:UD-731N Magnetic variation Magnetic variation in degrees (000.0 ~ 180.0) Magnetic Variation Magnetic variation direction ‘E’ = East ‘W’ = West Mode indicator Mode indicator ‘N’ = Data not valid ‘A’ = Autonomous mode ‘D’ = Differential mode ‘E’...
USB Dongle Series Model:UD-731N 10.6 VTG - COURSE OVER GROUND AND GROUND SPEED The Actual course and speed relative to the ground. Structure: GPVTG,x.x,T,x.x,M,x.x,N,x.x,K,a*hh<CR><LF> Example: $GPVTG,89.68,T,,M,0.00,N,0.0,K,A*5F<CR><LF> Field Name Example Description Course 89.68 True course over ground in degrees (000.0 ~ 359.9) Magnetic course over ground in degrees (000.0 ~...
USB Dongle Series Model:UD-731N 10.7 ZDA -TIME AND DATA Structure: $GPRMC,hhmmss.sss,dd,mm.yyyy, , ,xxx<CR><LF> 4 5 6 7 Example: $GPZDA,104548.04,25,03,2004,,*6C<CR><LF> Field Name Example Description UTC time 104548.04 UTC time in hhmmss.ss format, 000000.00 ~ 235959.99 UTC time: day UTC time: day (01 ... 31) UTC time: month 03 UTC time: month (01 ...
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