UB9A0

All-constellation All-frequency High Precision GNSS Board

UB9A0 is Unicore's new-generation proprietary high-precision RTK positioning board based on Unicore's proprietary GNSS SoC NebulasIV that integrates RF, baseband and high-precision algorithm, supporting GPS, BDS, GLONASS, Galileo, QZSS, NavIC and SBAS. UB9A0 is a High Performance GNSS Board, it 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.

Features

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

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

Channel	1408 channels, based on NebulasIV
Frequency	GPS L1C/A, L1C, L2P(Y), L2C, L5
	BDS B1I, B2I, B3I, B1C, B2a, B2b
	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
PPP (RMS)	Horizontal: 5 cm
	Vertical: 10 cm
Observation Accuracy (RMS)	BDS	GPS/ QZSS	GLONASS	Galileo
B1I/B1C/L1C/L1C/A/G1/E1 Code	10cm	10cm	10cm	10cm
B1I/B1C/L1C/L1C/A/G1/E1 Carrier Phase	1mm	1mm	1mm	1mm
B2I/B2a/B2b/L5/L2P(Y)/G3/E5a/E5b Code	10cm	10cm	10cm	10cm
B2I/B2a/B2b/L5/L2P(Y)/G3/E5a/E5b Carrier Phase	1mm	1mm	1mm	1mm
B3I/L2C/G2/E6 Code	10cm	10cm	10cm	10cm
B3I/L2C/G2/E6 Carrier Phase	1mm	1mm	1mm	1mm
Data Update Rate	Up to 50 Hz
Time Accuracy (RMS)	5 ns
Velocity Accuracy (RMS)	0.03 m/s
Sensitivity	Reacquisition -148 dBm
	Tracking -160 dBm
TTFF	Hot Start：5 s
	Cold Start：15 s
	Reacquisition：1 s (Unlock ≤ 30s)
	Reacquisition：2 s (30 s ≤ Unlock ≤ 90s)
Correction	RTCM 2.3, RTCM 3.X, CMR
Data Format	NMEA0183；Unicore

Physical Specifications

Dimensions	100 × 60 × 11.4 mm
Weight	46.5 g ± 2.5g

Environmental Specifications

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