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UB9A0

UB9A0

All-constellation All-frequency GNSS High Precision Board

UB9A0 is Unicore's new-generation proprietary high-precision RTK positioning board based on NebulasIV SoC which integrates RF, baseband and high-precision algorithm, supporting GPS, BDS, GLONASS, Galileo, QZSS, NavIC and SBAS. The board provides millimeter-level carrier-phase observations and centimeter-level RTK positioning output, and supports advanced multi-path mitigation and low elevation angle tracking. UB9A0 is compatible with mainstream GNSS OEM boards on the market and  provides UART, Ethernet, and other interfaces to meet the needs of users in different  applications such as surveying and mapping, CORS stations, portable base stations,  earthquake monitoring and global monitoring stations.


Presale 2024 Q2


gnss accuracy

APPLICATIONS

CORS Reference Station CORS Reference Station
Surveying and Mapping Surveying and Mapping

Features

  • Based on NebulasIV - a new generation multi-constellation multi-frequency high-precision SoC, with 1408 channels and powerful signal processing ability

  • Supports GPS/BDS/GLONASS/Galileo/QZSS/NavIC/SBAS single-constellation standalone positioning and multi-constellation joint positioning

  • Supports advanced multi-path mitigation and low elevation angle tracking

  • Supports the output of carrier-phase observations with millimeter-level accuracy

  • High reliability, high stability, suitable for challenging environment

  • Supports UART、Ethernet、1PPS、EVENT and external clock input

  • Supports antenna signal detection and short circuit protection

  • Size compatible with mainstream GNSS OEM boards on the market

Technical Specifications

Performance Specifications

Channel1408 channels, based onNebulasIV
FrequencyBDS B1I/B2I/B3I/B1C/B2a/B2b
GPS L1C/A/L1C/L2P(Y)/L2C/L5
GLONASS G1/G2/G3*
Galileo E1/ E5a/E5b/E6
QZSS L1C/A/L1C/L2C/L5
NavIC L5
SBAS L1 C/A
L-Band*
Single Point Positioning (RMS)Horizontal：1.5 m
Vertical：2.5 m
SBAS(RMS)Horizontal：0.8 m
Vertical：0.8 m
DGPS(RMS)Horizontal：0.4m + 1ppm
Vertical：0.8m + 1ppm
RTK(RMS)Horizontal：0.8 cm + 1 ppm
Vertical：1.5 cm + 1 ppm
Observation Accuracy (RMS)BDS GPS/ QZSS 
GLONASS
 Galileo
B1I/B1C/L1C/L1C/A/G1/E1 Code10cm 10cm 
15cm 
10cm
B1I/B1C/L1C/L1C/A/G1/E1 Carrier Phase1mm 1mm 
1mm 
1mm
B2I/B2a/B2b/L5/L2P(Y)/G3*/E5a/E5b Code10cm 10cm 
10cm 
10cm
B2I/B2a/B2b/L5/L2P(Y)/G3*/E5a/E5b Carrier Phase1mm 1mm 
1mm 
1mm
B3I/L2C/G2/E6 Code10cm 15cm
15cm
10cm
B3I/L2C/G2/E6 Carrier Phase1mm 1mm 
1mm 
1mm
Time Accuracy (RMS)20 ns
Velocity Accuracy (RMS)0.03 m/s
SensitivityReacquisition -148 dBm
Tracking -160 dBm
TTFFHot Start：5 s
Cold Start：15 s
Reacquisition：1 s (Unlock ≤ 30s)
Reacquisition：2 s (30 s ≤ Unlock ≤ 90s)


Initialization Time< 5 s（Typ.）
Initialization Reliability> 99.9%（Typ.）
Data Update RateUp to 50 Hz
CorrectionRTCM 3.X
Data FormatNMEA0183；Unicore


Physical Specifications

Dimensions100 × 60 × 11.4 mm
Weight46.5 g ± 2.5g


Environmental Specifications

Operating Temperature-40℃ ~ +85℃
Storage Temperature-55℃ ~ +95 ℃
Humidity95% No condensation
VibrationGJB150.16A-2009，MIL-STD-810
ShockGJB150.18A-2009，MIL-STD-810


Electrical Specifications

LNA+3.2 V ~ +3.6 V DC
Backup Power+2.2 V ~ +3.6 V DC
Ripple Voltage100 mVpp (max)
Power Consumption800 mW  (typical)


Communication Interfaces

1 x UART (RS-232)
2 x UART (LVTTL)
1 x LAN, 10/100M
1 × 1PPS (LVTTL)
1 × External Clock, 10M / 20M


NOTE: Items marked with * are supported by specific firmware

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UB9A0_Product_Brief_En
31/01/2024
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