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Revision History Version Revision History Date Ver. 1.0 First release Aug. 2017 R3.1 Add the related description to clarify the VCC restrictions 2019-08-28 Chapter 2.1: revise the mechanical dimensions of fields and the R3.2 RF connector 2019-10-14 Chapter 2.2: pin 12 and pin 24 are reserved R3.3 Update product diagram and Copyright time 2020-04-08...
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Foreword This <User Manual> provides information in the features of the hardware, the installation, specification and use of UNICORECOMM UB482 product. For the generic version of this manual, please refer to the appropriate part of the manual according to your purchased product configuration, concerning CORS, RTK and Heading.
By employing a single UC4C0 (432 channel tracking) baseband chip and a single RF chip, using single-sided SMD packaging, UB482 has achieved very small size (30x40mm). It can simultaneously track GPS L1/L2 + BDS B1I/B2I + GLONASS L1/L2+Galileo E1/E5b+QZSS.
12 navigation signals with 432 channels. ⚫ 1PPS UB482 outputs 1 Pulse-per-second time strobe with corresponding time and positioning tag. The pulse width/polarity is configurable. ⚫ Event UB482 provides 1 Event Mark Input with adjustable pulse width and polarity.
(starting from ANT1, ending at ANT2) and True North. 2.2 Connector and Pin Definition There are two dual rows of pin headers on UB482: 2x14 dual row, 2.0mm pitch Figure 2-3 UB482 Pins Definition _______________________________________________________________________________...
LVTTL /or I2C SCL Power High effective (RTK fix is effective when UB482 works as the rover; When UB482 works as the base station, successful set up of the base Position valid station and GPGGA status bit at “7” will make the pin effective).
UB482 User Manual Signal Description Notes Pulse per second Reserved Positive electrode of Ethernet TPO+ Connect to TD+ sending data, Differential pair. Positive electrode of Ethernet TPI+ receiving data, Differential Connect to RD+ pair Negative electrode of TPO- Ethernet sending data,...
Item Typical Unit Condition LOW Level Output Voltage Vout_low 0.45 Iout= 4 mA High Level Output Voltage Vout_high 2.85 Iout =4 mA Antenna Gain Gant Power Consumption 2.6 Physical Specifications Table 2-5 Physical Specifications Operating: -40℃~+85℃ Temperature Storage: -55℃~+95℃ Humidity 95% No condensation Vibration GJB150.16-2009, MIL-STD-810...
⚫ Antenna interface: Make sure the antenna impedance matches, and the cable is short without any kinks, try to avoid acute angles ⚫ Try to avoid designing in any circuits underneath UB482 ⚫ Keep the board away from any high temperature air flow as far as possible 3.2 UB482 Reference Design...
30~100 mA in room temperature, the voltage is DC 4.6V±0.2V. Fifty (50) ohm impedance matching for ANT1 and ANT2 is strongly recommended when the active antenna is connected. ANT1 UB482 Figure 3-2 UB482 Antenna Connection Diagram...
UB482 User Manual 4 Installation and Configuration 4.1 ESD Handling Precautions UB482 Board is an ESD sensitive device and special precautions when handling are required. ⚫ Electrostatic discharge may cause damages to the device. All operations mentioned in this chapter should be carried out on an antistatic workbench, wearing an antistatic wrist strap and using a conductive foam pad ⚫...
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Follow the steps below to install: ➢ Step 1: Fix UB482 board on the EVK with the holes and pins accurately. ➢ Step 2: Choose the correct location for the antenna—this is critical for a high- quality installation. Poor or incorrect placement of the antenna can influence accuracy and reliability and may result in damage during normal operation.
➢ Step 6: Configure the receiver through UPrecise software to send commands or to log data. 4.3 Power On UB482 power supply voltage is 3.3V. After power-on, the receiver starts and can establish communication quickly. 4.4 Configuration and Output UNICORECOMM UPrecise software provides a graphical interface to control and display the operation of the receiver.
Figure 4-4 UPrecise Views 4.4.1 Operation Steps 1) Turn on the EVK. Click “file - > connect”. Set the baud rate: the default baud rate is 115200 bps Figure 4-5 Connect the Serial Port 2) Click the “receiver settings” button to configure the NMEA message output 3) Click “send”...
UB482 User Manual Figure 4-6 NMEA Data Output 5 LED Indicators LED indicators are installed on UB482 board to indicate the basic working status of the board, which includes: Color Status Instruction Remark Power on Power off Valid of RTK fix when UB482 works as the rover...
Figure 5-1 LED Indicators 6 Configuration Commands UB482 supports abbreviated ASCII format. All commands are composed of a log heading and configuration parameters. Common instructions are shown in the following table: Table 6-1 Common Instructions Command Description freset Reset to factory settings. Note: the factory set baud rate is 115200 bps.
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UB482 User Manual Command Description When restarting after power off, the calculations will repeat and a new coordinate will be generated. Mode base lat Lon height: Manually configure the coordinate: lat, lon, height Example: lat=40.07898324818, mode base lat lon=116.23660197714, Lon height height=60.4265...
6.1 Reference Station Configuration The RTK base station should be static with a fixed and known position. The common instructions to set up an RTK base station configuration are: 1) If the precise coordinates are known, the precise coordinates could be set as in this example: Table 6-2 Base Station Mode Command...
Save configuration 6.4 Heading Configuration This command is used for dual-antenna receivers (UB482, UM482, and UM442). The heading result is the angle from True North to the baseline of the ANT1 to ANT2 in a clockwise direction. The heading function is enabled by default settings. See Figure 6- 1 Heading Schematic for the schematic.
6.5 Heading2 Configuration The heading2 result is the angle from True North to the baseline of the base to rover in a clockwise direction. Dual-antenna heading receiver (UB482, UM482, UM442) supports heading2. The heading2 for the dual-antenna receiver is the angle from True North to the baseline of the base to ANT1 in a clockwise direction.
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UB482 User Manual firmware upgrading process (don’t select “Reset” checkbox): Figure 7-1 Update Interface In general, the upgrade time is within 5minutes. Note: Please use COM1 for firmware upgrade Figure 7-2 Update Complete...
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