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Before placing an order, please contact our company or local distributors for the latest specifications. * Unicore Communications, Unicorecomm, NebulasII and its logo have been applied for trademark registration by Unicore Communications, Inc. Other names and brands are the property of their respective owners.
1. Overview UB4B0M is a new generation compact RTK board based on NebulasII high performance and high accuracy GNSS SoC. It supports signals including BDS B1I/B2I/B3I/B1C/B2a, GPS L1/L2/L5, GLONASS L1/L2 and Galileo E1/E5a/E5b. UB4B0M is characterized by its classic small size, supports chip-level multi-path mitigation, and delivers millimeter-level carrier phase observations and centimeter-level RTK positioning.
NebulasII (UC4C0) digital processing requires. NebulasII SoC (UC4C0) The UB4B0M incorporates the processing from the NebulasII SoC, UNICORECOMM’s new generation high precision GNSS SoC with 55 nm low power design, which supports 432 channels and is equipped with a built-in UNICORECOMM’s new generation baseband engine.
UB4B0M User Manual 1PPS UB4B0M provides 1 PPS signal with adjustable pulse width and polarity. Event UB4B0M provides 1 Event Mark Input signal with adjustable pulse width and polarity. 2. Hardware Composition 2.1 Mechanical Dimension Table 2-1 Mechanical Dimension Parameter...
Figure 2-1 Mechanical Structure Drawing 2.2 Interface and Pin Function Apart from the antenna RF interface, UB4B0M provides the following 20 Pin SAMTEC dual-row pin. The pin distance: 2.0 mm; pin length: 4.0 mm; base thickness: 1.5 mm. Figure 2-2 Pinout...
Shock GJB150.18-2009, MIL-STD-810 3. Hardware Integration Guide 3.1 Design Notes For the normal operation of UB4B0M, the following signals need to be connected correctly: The module VCC power-on behavior is repeatable, the initial level is lower than 0.4V, and the undershoot and ringing should be guaranteed to be within 5% VCC...
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UART interface ensures that the signal and baud rate of the main device are consistent with those of UB4B0M. Antenna wires should be as short and smooth as possible; avoid sharp angle and pay attention to impedance matching.
3.3 Antenna Antenna input MCX interface of UB4B0M provides an antenna feed of 4.6±0.2 V. Do not connect the antenna to the port of antenna in the module, and use a multimeter to test, that is, the voltage supply is DC4.8 V ~ 5.4 V when there is no-load. When the RF port of the module is connected to the antenna, the working current is 30~100 mA at normal temperature, and the antenna feed of DC4.6 V±0.2 V can be supplied to the outside.
4.2 Installation Guide UB4B0M is delivered in the form of board, allowing users to assemble it flexibly according to application scenarios and market needs. The following figure shows a typical UB4B0M installation method using a set of evaluation kit (EVK). Users can also, in the same way,...
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Desktop or laptop (Win7 and above) with serial ports, installed relevant serial driver and UPrecise software Step 1. For the UB4B0M EVK users, align UB4B0M positioning holes and pins with EVK. Note: If the EVK connector hole is 24-pin, connect the middle 24 pins of the board to the connector).
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UB4B0M User Manual Figure. 4-2 UB4B0M Connecting to Antenna RF Wires Note: The RF connector on the board is MMCX. Please select the appropriate cable according to the packaging. The input signal gain of the antenna connector should be within 25 to 36dB. Plug and unplug the MCX RF head vertically and the time of this operation is limited.
Step 6. Operate the receiver via UPRECISE and record the relevant data. 4.3 Power on The supply voltage of UB4B0M is 3.3 V, and the supply terminal voltage of EVK is 12 V. After powered on, the receiver starts up and can quickly establish communication.
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Step 1. Follow 4.2 Installation Guide to connect the power source, antenna to the board, and turn on the EVK switch Step 2. Click file - > connect the serial port, and set the baud rate; the default baud rate of UB4B0M is 115200bps Figure. 4-5 Connect the Serial Port...
Step 3. Click the receiver settings button to configure the NMEA message output. It is recommended to configure GPGGA, GPGSV, and other messages. Figure. 4-6 NMEA Data Output Step 4. Click the receiver settings button, configure the NMEA message output, and click send.
(if the parameter part is empty, the command has only one header), and the header field contains the command name or message header. UB4B0M is simple and easy to use, and the common commands are shown in the following table:...
Command Description rtcm1033 comx 10 The base station mode is set as COMX, ICOMX, NCOMX to rtcm1006 comx 10 send a differential message. COMX can be appointed as rtcm1074 comx 1 anyone in COM1, COM2, and COM3; rtcm1124 comx 1 rtcm1084 comx 1 rtcm1094 comx 1 NMEA0183 Output Statement...
UB4B0M User Manual Command Specification saveconfig Save settings Self-optimizing setting base station refers that there is no precise coordinate at the point where the base station is set up. The receiver can be set to self-position within a certain period at the installation point to get the average value, which can be set as the coordinates of the base station.
The firmware of UB4B0M is updated using UPrecise software. In the UPrecise interface, click as follows: “Advanced” -> “Firmware Update”. Figure 7-1 Update Interface Click “Select Path”, select the file location of UB4B0M PKG and then click “START” (Ignore the software reset option).
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UB4B0M User Manual Figure 7-2 Update Steps Wait for the progress bar to complete 100%, and the upgrade time will be counted (usually less than 5 minutes). Figure 7-3 Update Steps When using a serial port to upgrade, please use serial port 1 of the board.
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