UM4B0_High-Precision GNSS Module | GPS Receiver Modules/Boards | High-Precision GNSS Devices | High Precision RTK Modules | Products

GPS/BDS/GLONASS/Galileo
Multi-freqency High-precision RTK Module

Applications

Features

Performance Specifications

Data Manual

Related Products

Brief Introduction

UM4B0 is an all-constellation all-frequency RTK positioning module based on the high-performance high-precision SoC - NebulasII, which is developed by Unicore Communications. It supports multiple satellite signals, including BDS B1I/B2I/B3I/B1C/B2a, GPS L1/L2/L5, GLONASS L1/L2, Galileo E1/E5a/E5b and QZSS L1/L2/L5. UM4B0 has adopted narrowband anti-jamming technology. It is mainly applied in the field of light-weight robots, GIS, intelligent driving, UAV,etc.

Product Features

● Based on multi-system multi-frequency high-performance SoC - NebulasII, with 432 super channels

● Support BDS, GPS, GLONASS, Galileo and QZSS, including Beidou-3 signal

● 30x40 mm, small size all-system all-frequency RTK positioning SMD module

● Instantaneous RTK initialization and support long baseline RTK solution
● Adaptive recognition of differential data RTCM format, support antenna signal detection

● 60dB narrowband anti-jamming, support multi-path suppression technology

● Support UART, 1PPS, Event and other physical interfaces

Great Performance comes in different sizes

Compact SMD packaging

All-Constellation Multi-Frequency

Customized services

Firmware quick update and iteration

Rich and Flexible Evaluation Kits and Softwares

Proven - Products have been widely applied in worldwide projects, a leading choice for Intelligent Drive, Robots, UAV，etc

Core Technology

"UGypsophila" RTK technology
Better than 1s RTK reacquisition

"RTK KEEP" Technology

Adaptive recognition of RTCM

Performance Specifications

Channels	432 channels,based on Nebulas-II chip	Observation Accuracy(RMS)	BDS	GPS	GLONASS	Galileo
Frequency	BDS B1/B2/B3	B1/L1(C/A)/E1 Code	10cm	10cm	10cm	10cm
	GPS L1/L2/L5	B1/L1/E1 Carrier Phase	1mm	1mm	1mm	1mm
	GLONASS L1/L2	B2/L2P(Y)/L2C/E5b Code	10cm	10cm	10cm	10cm
	Galileo E1/E5a/E5b	B2/L2p(Y)/L2C/E5b Carrier Phase	1mm	1mm	1mm	1mm
	GLONASS L1/L2	B2/L2P(Y)/L2C/E5b Code	10cm	10cm	10cm	10cm
	GLONASS L1/L2	B3/L5/E5a Carrier Phase	1mm	1mm	1mm	1mm
Single point positioning	Horizontal：1.5 m	Initialization time	< 5 s (typical)
Single point positioning	Vertical：2.5 m	Initialization reliability	> 99.9%
DGPS(RMS)	Horizontal：0.4 m	Reacquisition	< 1 s
DGPS(RMS)	Vertical：0.8 m	Correction	RTCM v2.3/3.0/3.2
RTK(RMS)	Horizontal：10 mm + 1 ppm	Data Output	NMEA-0183，Unicore Binary
RTK(RMS)	Vertical：15 mm + 1 ppm	Update Rate	20 Hz
Velocity Accuracy (RMS)	0.03 m/s	Positioning rate	20 Hz
Time to First Fix (TTFF)	Cold start < 25 s	Time accuracy (RMS)	20 ns
Time to First Fix (TTFF)	Hot start < 10 s	Dead Reckoning Error	<5% of distance travelled during GPS denied conditions
		Network Protocol	NTRIP、TCP/IP

Physical Specifications

Size	30 × 40 × 4 mm
Weight	9.2 g

Functional Ports

3x UART(LV-TTL)	1x1PPS（LV-TTL）
1xEvent input

Environmental Specifications

Temperature	Working: -40℃～+85℃
Temperature	Storage: -55℃～+95℃
Humidity	95% No condensation
Vibration	GJB150.16-2009，MIL-STD-810
Shock	GJB150.18-2009，MIL-STD-810