UNICORECOMM UB4B0 User manual

Unicorecomm Confidential
WWW.UNICORECOMM.COM
INSTALLATION AND OPERATION
USER MANUAL
GPS/BDS/GLONASS/Galileo
UB 4B0
Data subject to change without notice.
Copyright© 2009-2020, Unicore Communications, Inc.
High Precision Board
ALL-Constellation Multi-Frequency

i
Revision History
Version
Revision History
Date
Ver. 1.0
First release
Aug. 2017
Ver. 1.1
Update the Dimension of UB4B0
Feb.2019
R1.3
Revise mechanical spec/add HW design
notes/remove MEMS info
2019-08-28
R1.4
Add the shield dimension
2019-10-12
R2.0
Align the installation diagram with HW
ver3.1
2020-02-20
R2.1
Update Copyright time
2020-04-07
R2.2
Update BDS frequency
2020-06-30
Disclaimer
Information in this document is subject to change without notice and does not
represent a commitment on the part of Unicore Communications, Inc. No part of this
manual may be reproduced or transmitted in any form or by any means, electronic
or mechanical, including photocopying and recording, for any purpose without the
express written permission of a duly authorized representative of Unicore
Communications, Inc. The information contained within this manual is believed to be
true and correct at the time of publication.
© Copyright 2009-2020 Unicore Communications, Inc. All rights RSV.

UB4B0 User Manual
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Foreword
This <User Manual> offers you information in the features of the hardware, the
installation, specification and use of UNICORECOMM UB4B0 product.
For the generic version of this manual, please refer to different part of the manual according to
your purchased product configuration, concerning CORS, RTK and Heading.
Readers it applies to
This <User Manual> is applied to the technicists who know GNSS Receiver to some
extent but not to the general readers.

i
Content
1OVERVIEW...........................................1
1.1 KEY FEATURES ........................................................................................................................1
2HARDWARE DESIGN IN CONSIDERATIONS .............2
3INSTALLATION .......................................2
3.1 PACKAGE INSPECTION.............................................................................................................2
3.2 ESD PROTECTION...................................................................................................................3
3.3 BOARD OVERVIEW...................................................................................................................3
3.4 INSTALLATION GUIDE ...............................................................................................................4
4LED INDICATORS.....................................8
5PC UTILITY CONFIGURATION（UPRECISE）...........10
5.1 OVERVIEW .............................................................................................................................10
5.2 OPERATION STEPS ................................................................................................................11
6FIRMWARE UPDATE（WINCONFIG）..................12
7HARDWARE INTERFACE .............................16
7.1 POWER INPUT........................................................................................................................16
7.2 RF INPUT...............................................................................................................................16
7.3 EXTERNAL CLOCK INPUT.......................................................................................................17
7.4 SERIAL PORTACCESS...........................................................................................................17
7.5 PIN FUNCTION........................................................................................................................17
APPENDIX I MECHANICAL DRAWING ....................21
APPENDIX II TECHNICAL SPECIFICATIONS ...............23

1
1 Overview
Thank you for purchasing and using UB4B0 GPS/BDS/GLONASS/Galileo
ALL-Constellation Multi-Frequency High Precision OEM Board. The UB4B0 can provide
reliable centimeter-level accuracy and high accuracy heading output at high update
rate .UB4B0 employ the new generation all-constellation multi-core high precision SoC
chip, NebulasII (432 channel tracking), based on mature base line chip (XINGYUN), 55nm
low power consumption，built in broadbandADC and anti-interference unit，integrated two
600MHzARM processor and special High speed floating point processor，provides more
powerful satellite navigation signal process ability. UB4B0 provide millimeter-lever
carrier-phase observation data and centimeter-lever RTK position Output, supports
advanced multi-path mitigation and low angle tracking；UB4B0 is suitable for high
precision surveying and mapping application, especially for geodetic surveying
engineering survey, deformation monitoring, mechanical control, meteorological
monitoring, Precision agriculture, Continuous operation reference station（CORS）etc.
advanced instantaneous RTK and long-distance RTK.
Figure 1-1 UB4B0 Board
1.1 Key Features
Based on NebulasII new generation multi-system multi-frequency
high-performance SoC Chip
432 channels，super tunnel and dedicated fast acquisition engine

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Support BDS, GPS, GLONASS, Galileo and QZSS etc.
Hardware size compatible with current GNSS OEM boards
Support GPS/BDS/GLONASS/Galileo single system positioning and multi-system
positioning
Support advanced multi-path mitigation and low angle tracking
Support Rover station RTK
Millimeter-lever Carrier-phase Observation Data
High reliability、High stability、suitable for challenging environment
On board MEMS integrated navigation *
Support RS232, Ethernet，1PPS，external clock input
2 Hardware Design in Considerations
To keep UB4B0 functioning normally, the following signals need to be connected correctly：
The module VCC power-on has good monotone, the initial level is lower than 0.4V,
and the undershoot and ringing should be guaranteed within 5% VCC
It is recommended to use a power chip with current output capacity greater than
2A to power the board
3 Installation
This section contains the list of the product package and the details of product
installation.
3.1 Package Inspection
Please check the contents of the package carefully after receiving the package of UB4B0：
UB4B0 board and EVK suite (or evaluation board) (or enclosure)
User manual (CD attached)
Command manual (CD attached)
UPrecise software (CD attached)

3
MMCX antenna cable
Cross serial Port cable
3.2 ESD Protection
A lot of components onUB4B0 susceptible to electrostatic damage, which affects IC
circuits and other components. Please follow the instructions below for ESD protection
before open the plastic package:
Electrostatic discharge (ESD) can damage components. Please use under anti-static
work bench, a conductive foam pad, and at the same time, wearing an anti-staticwrist
strap. If ESD workstation is not available, wear an anti-static wrist strap and attaching
it to metal parts of your industrial PC in order to obtain protection against static
electricity.
Please use the edge of the board, avoiding to touch the components on the board
while fetching or put the boards
Please carefully check for obviously loose or damaged components after removing
the package from the boards. Any questions, please contact your local dealer.
Please save package boxes and plastic containers，for storage and transport.
3.3 Board Overview
RF
Section Nebulas External CPU I/O
Antenna
External
Clock
Figure 3-1 Structure Diagram

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1. RF Part
The receiver gets filtered and enhanced GNSS signal from the antenna via a coaxial cable.
The RF part convert the RF input signals into the IF signal, and convert IF analog signal
into digital signals required for NebulasII die (UC4C0).
2. NebulasII SoC（UC4C0）
NebulasII (UC4C0) is Unicode’s new generation high precision GNSS SoC with 55nm
low power design, supports up to 12 digital intermediate frequency or 8 analog
intermediate frequency signals, which can track 12 navigation signals with 432 channels.
3. 1PPS
UB4B0 provides1 PPS with adjustable pulse width and polarity and 1 output pulse width.
4. Event
1
UB4B0 provides 1 Event Mark Input.
5. I/O
Power input, data communication port, pulse trigger, LED etc.
3.4 Installation Guide
UB4B0 is delivered as a board, users can flexibly assemble according to the scenario and
the market need. Figure below shows the typical installation of UB4B0 with evaluation kit
(EVK), users can also use other enclosures to install receiver, using the same method.
1
Supported on customized versions

5
Figure 3-2 UB4B0 Installation
For efficient installation, please get prepared for the following items before installation:
UB4B0 EVK suite (or evaluation board) (or enclosure)
User manual
Command manual
UPrecise software (CD attached)
Qualified antenna
MMCX antenna cable
PC or Laptop with serial ports (Win7 and above), with UPrecise installed
After the above preparation is made, please follow the steps below to install: ：
Following the steps below to install the device:
1. Align UB4B0 positioning holes and pins with EVK, and fix UB4B0 in the EVK. EVK
provides power supply and standard communication interface for the board, to

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communicate with peripheral devices (such as PC, USB devices
2
, and so on)..
Figure 3-3 Installation Step 1
2. Select a GNSS antenna with appropriate gain, and mount it in an open sky area.
Connect the antenna to J1 MMCX port of UB4B0 via coaxial RF cable.
Figure 3-4 Installation Step 2
NOTE: The RF connector of the board is MMCX, please select the appropriate cable.
The signal gain to board RF connector should be within 25 to 35dB. The Antenna
connector provides 5VDC antenna feed.
3. Connect the PC with EVK through serial ports, or through Ethernet ports.
2
Only for manufactory test

7
Figure 3-5 Installation Step 3
Figure 3-6 Installation Step 3
4. Connect a 12V adapter with the EVK power input, and switch on to power the device

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Figure 3-7 Installation Step 4
5. Start UPRECISE on the PC
6. Refer to UPRECISE online help to send commands or log data for the receiver
Note: In case the card has not been in use for a long time, or the distance from last
time used location is above 1000Km, a slower fix may occur. In that case, please use
the FRESET command to clear the older ephemeris and Almanac information (this
command will also clear the Board setup information). After the FRESET command is
executed, the board will be reset, it will take 15 minutes to collect new ephemeris
and Almanac information.
4 LED Indicators
There is a double color LED indicator on UB4B0, which can indicate the working status of
the board.
No
Status
Red
Green
Remark
1
Single
Point
Positioning
BDS
off
0.25s
Green Fast Flash
2
Multi-System
0.25s
0.25s
Orange Fast Flash (red and
green
on)
3
Differential
Positioning
BDS
off
1s
Green Slow Flash
4
Multi-System
1s
1s
Orange Slow Flash (red and
green
on)
5
Insufficient satellites
1s
off
Red Slow Flash
Power

9
No
Status
Red
Green
Remark
6
Status Switch
Blank 1s
Blank
1s
Time interval between two
positioning status
7
abnormal
0.25s
off
Red Fast Flash, abnormal status
other than 1-5
8
Power on
Red
Stead
On
off
Switch into other status after
starting up.
1. For normal status, the indicating sequence is: power on->status switch->insufficient
satellites->
status switch…… insufficient satellites -> single point positioning ->single point
positioning->
status switch……single point positioning -> single point positioning ->differential
positioning->
status switch -> differential positioning……
2. If abnormal status occurs on the board, the indicating sequence is: power on->
abnormal, or normal - > abnormal
Figure 4-1 LED Indicators

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5 PC Utility Configuration（UPrecise）
5.1 Overview
UB4B0 Unicore UPRECISE (Control and Display Tool) provides a user-friendly graphical
interface to control and display the operation of your receiver. User can access the
functionality and information just through several clicks.
The following features are included in UPRECISE：
Connect the receiver, configure the baud rate
Graphic window for displaying Position of satellite, PRN, and Signal/Noise Ratio
(Constellation View)
Historical and present Trajectory of the receiver and display Position velocity, and
time（Trajectory View）
Graphic interface for data logging, send commands to the Receiver（Logging
Control View）
Console window for sending command to receiver (Console View)
Sending commands to the Receiver
The trajectory view for displaying the present point and the past point of the
Receiver
Upgrading the firmware
TTFF test

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Figure 5-1 UPrecise Overview
5.2 Operation Steps
1. Follow the tutorial to install the board, and turn on the EVK switch
2. Click file - > connect the serial port, set the baud rate, the default baud rate is
115200bps
Figure 5-2 Configure Baud Rate
3. Click the receiver settings button to configure the NMEAmessage output. It is
recommended to configure GPGGA, GPGSV, and other messages.

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Figure 5-3 Configure NMEA Output
4. Click the receiver settings button, configure the NMEA message output, and click
send. It is recommended to configure GPGGA, GPGSV, and other statements. or
5. In the dialog window, click on "Send all Message" to complete all the NMEA
message output (update rate 1Hz). Right click in the data session window to
adjust: output log font size, stop / resume log output, or clear log content
6. Configure or type commands according to requirements in various UPrecise views
6 Firmware Update（WinConfig）
WinConfig (in the attached CD) software is used for the remote update of UB4B0, please
follow the steps below to install the software:
During the firmware update of the board, please stop all the operations to the
device, including the cutoff of the power supply.
Step 1: Click the program icon to run the software:

13
Figure 6-1 WinConfig Welcome Interface
Step 2: Click “Next” to browse the firmware update package:
Figure 6-2 Select Firmware Update Package
Step 3: Click “Next” to display the communication type:

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Figure 6-3 Select Communication Type
Step 4：Select the communication type as through Serial Port(COM), click “Next” to
configure:
Figure 6-4 Serial Port Communication Configuration
Please use COM1 to update firmware.
Step 5: After the configuration of the COM port, click “Next” to prompt the configuration
summary dialog:

15
Figure 6-5 Serial Port Upgrade Configuration Summary
Step 6：Check the summary to make sure the receiver is correctly configured, then click
“Finish” to prompt the Upgrade window:
Figure 6-6 Firmware Upgrade Window
Step 7: Click“Upgrade” to start the firmware upgrading process:

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Figure 6-7 Serial Port Upgrade Success
The "Upgrade" button is gray and can’t be clicked while the receiver is in the
upgrading process, unless the upgrade is complete, or an error occurs during the
upgrade process.
Step 8: Check the firmware upgrading process is finished successfully.
7 Hardware Interface
This chapter is a brief introduction about UB4B0 receiver I/O port and Electrical
Characteristics, please connect correctly in case unnecessary damage
7.1 Power Input
Index
Description
Acceptable velocity Input range
3.3V +5%/-3%
Note: Please avoid switching power supply frequently, it is recommended that the
switching interval is greater than 5s.
7.2 RF Input
Index
Description
RF Input
-85 dBm ~ -105 dBm
signal Input
BDS B1/B2/B3 + GPS L1/L2+GLONASS L1/L2+Galileo