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UB4B0M

UB4B0M is a compact high precision board supporting RTK positioning. Using the self-developed proprietary multi-system multi-frequency high-performance SoC Nebulas-II, the board features low power consumption and offers millimeter-level carrier phase observation value as well as centimeter-level RTK positioning, supporting chip-level multi-path mitigation. The leading instantaneous RTK technology is especially suitable for high-precision navigation and positioning applications.

APPLICATIONS

Ground-Based Augmentation System

CORS Reference Station

Surveying and Mapping

FEATURES

Based on Nebulas-II high-performance SoC, with 432 super channels
Support BDS, GPS, GLONASS, Galileo and QZSS, including Beidou-3 signal
Centimeter-level high-precision RTK positioning, better than 1mm carrier phase observation value
Support single system standalone positioning and multi-system joint positioning
Support multi-path suppression technology
Support 3 x UART and 1 x 1PPS
Compatible with mainstream GNSS OEM boards

Exceptional performance meets great price

All-constellation All-frequency
Compatible size and PIN layout
Compact Size with lowest power consumption
Super cost-effective

Customized Services

Supports customized protocol
Firmware quick update and iteration
Widely adopted by main stream surveying RTK equipments, UAV base stations

Core Technology

Advanced multi-path mitigation technology
Low elevation tracking technology
Fast Carrier Phase Polarity Determination

Technical Specifications

Performance Specifications

Channels	432 channels, based on Nebulas-II GNSS SoC		Velocity Accuracy (RMS)	0.03m/s
Frequencies	BDS B1/B2/B3		Time Accuracy (RMS)	20 ns
	GPS L1/L2/L5		Initialization time	5 s (typical)
	GLONASS L1/L2		Cold Start	＜25 s
	Galileo E1/E5a/E5b		Initialization Time	＜5 s(typical)
	QZSS L1/L2/L5		Initialization reliability	> 99.9%
	SBAS L1		Reacquisition	< 1s
Single point positioning (RMS)	Horizontal：1.5 m		Correction	RTCM 2.3/3.0/3.2
Single point positioning (RMS)	Vertical：2.5 m		Data Output	NMEA-0183，Unicore
DGPS(RMS)	Horizontal：0.4 m		Data Output	NMEA-0183，Unicore
DGPS(RMS)	Vertical：0.8 m		Update Rate	20 Hz
RTK(RMS)	Horizontal：0.8 cm + 1 ppm		Inertial Navigation Accuracy	< 5%x droving distance(No GNSS signal，within 30s)
RTK(RMS)	Vertical：1.5 cm + 1 ppm		Network Protocol	NTRIP、TCP/IP
Observation Accuracy(RMS)	BDS	GPS	GLONASS	Galileo
B1/L1(C/A)/E1 Code	10cm	10cm	10cm	10cm
B1/L1/E1 Carrier Phase	1mm	1mm	1mm	1mm
B2/L2P(Y)/L2C/E5b Code	10cm	10cm	10cm	10cm
B2/L2p(Y)/L2C/E5b Carrier Phase	1mm	1mm	1mm	1mm

Physical Specifications

Dimensions	46 × 71 × 9 mm
Weight	26 g
I/O Connectors	2 x 10 pin
Antenna Input	1 × MMCX

Environmental Specifications

Temperature	Operating	-40°C ~ +85°C
	Storage	-55°C ~ +95°C
Humidity	95% non-condensing
Vibration	GJB150.16-2009， MIL-STD-810
Shock	GJB150.18-2009， MIL-STD-810

Electrical Specifications

Voltage	3 VDC + 5 %
LNA	4.75 ~ 5.10 V, 0 ~ 100 mA
Ripple Voltage	100mV p-p（max）
Power Dissipation	1.8 W (Typical)

Functional Ports

Serial	3 x UART (LVTTL)
PPS	1 x 1PPS (LV-TTL)

Download

UB4B0M_Product_Brief

25/12/2023

VIEW

UB4B0M_User_Manual_EN_R4.1

25/12/2023

VIEW