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UB4B0M

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.

ub4b0m

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/L5Initialization time5 s (typical)
GLONASS L1/L2Cold Start<25 s
Galileo E1/E5a/E5bInitialization Time<5 s(typical)
QZSS L1/L2/L5Initialization reliability> 99.9%
SBAS L1

Reacquisition

< 1s

Single point positioning (RMS)

Horizontal:1.5 m

Correction

RTCM 2.3/3.0/3.2

Vertical:2.5 m

Data Output

NMEA-0183,Unicore

DGPS(RMS)

Horizontal:0.4 m

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)

Vertical:1.5 cm + 1 ppm

Network Protocol

NTRIP、TCP/IP

Observation Accuracy(RMS)BDSGPSGLONASSGalileo
B1/L1(C/A)/E1 Code10cm10cm10cm10cm
B1/L1/E1 Carrier Phase1mm1mm1mm1mm
B2/L2P(Y)/L2C/E5b Code10cm10cm10cm10cm
B2/L2p(Y)/L2C/E5b Carrier Phase1mm1mm1mm1mm


Physical Specifications

Dimensions46 × 71 × 9 mm
Weight26 g
I/O Connectors2 x 10 pin
Antenna Input
1 × MMCX


Environmental Specifications

Temperature
Operating
-40°C ~ +85°C
Storage-55°C ~ +95°C
Humidity95% non-condensing
VibrationGJB150.16-2009,
MIL-STD-810
ShockGJB150.18-2009,
MIL-STD-810


Electrical Specifications

Voltage3 VDC + 5 %
LNA4.75 ~ 5.10 V, 0 ~ 100 mA
Ripple Voltage100mV p-p(max)
Power Dissipation1.8 W (Typical)


Functional Ports

Serial
3 x UART (LVTTL)
PPS1 x 1PPS (LV-TTL)

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UB4B0M series is an older generation product. For new designs see
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