UniStrong
Aquila GNSS Wideband RF Chip
The Aquila chip is UniStrong's first four-channel GNSS wideband RF chip. It incorporates signal…
UniStrong
V28U Compact High-Precision Heading OEM Board
The V28U is a new V-series heading OEM board launched by UniStrong, developed based on the Lyra-II baseband chip. The V28U board tracks full-constellation, all-frequency GNSS signals and fully supports BeiDou-3 satellite signal reception.
- 1100
- Channels
- 0.5°
- Roll Accuracy
- 10 ns
- Timing Accuracy
Original UniStrong unit·Authorized distributor
Overview
About the V28U
The V28U is a new V-series heading OEM board launched by UniStrong, developed based on the Lyra-II baseband chip. The V28U board tracks full-constellation, all-frequency GNSS signals and fully supports BeiDou-3 satellite signal reception. Equipped with brand-new anti-jamming technology, it delivers enhanced performance in complex environments. Featuring a compact 28-pin design compatible with mainstream heading boards, it can be widely applied in precision agriculture, machine control, marine navigation, and other high-precision application fields.
Specifications
The V28U is a new V-series heading OEM board launched by UniStrong, developed based on the Lyra II baseband chip. The V28U board tracks full-constellation and multi-frequency GNSS signals, with full support for BeiDou-3 satellite signals. Featuring new anti-jamming technology, it enhances performance in complex environments. With a compact 28-pin pinout design compatible with mainstream heading boards, it is well suited for precision agriculture, machine control, marine navigation, and various other high-precision applications.
Product Features
● Powered by Lyra II + Aquila high-precision chipsets; ● Full support for BeiDou-3 satellite signal reception, with full-constellation and multi-frequency heading determination; ● New anti-jamming technology for superior performance in complex environments; ● Heading accuracy better than 0.08° (@ 1.0 m antenna baseline); ● Onboard IMU providing pitch, roll, and other attitude information; ● Compact 28-pin pinout design with excellent compatibility.
Specifications
Technical data
Values from the UniStrong datasheet. Ask us for the full sheet or a side by side with another model.
GNSS Specifications
- Satellite Tracking
- GPS: L1C/A, L1C, L1P, L2C, L2P, L5; BDS: B1I, B2I, B3I, B1C, B2a, B2b, ACEBOC; GLONASS: G1, G2, G3; Galileo: E1, E5a, E5b, ALTBOC, E6; QZSS: L1C/A, L1C, L2C, L5, LEX; SBAS; L-Band (Commercial PPP Service)
- Channels
- 1100
- Tracking Sensitivity
- -142 dBm
- SBAS Tracking
- 3-channel parallel tracking
- Data Update Rate
- 20 Hz (Standard)
- Accuracy Specifications
- Positioning Accuracy / Horizontal (RMS) / Vertical (RMS)
- Accuracy Specifications
- RTK / 8 mm + 1 ppm / 15 mm + 1 ppm
- Accuracy Specifications
- SBAS / 0.3 m / 0.6 m
- Accuracy Specifications
- DGNSS / 0.3 m / 0.6 m
- Accuracy Specifications
- Standalone / 1.2 m / 2.5 m
- Heading Accuracy
- 0.16° (@ 0.5 m baseline) 0.08° (@ 1.0 m baseline) 0.04° (@ 2.0 m baseline) 0.02° (@ 5.0 m baseline)
- Pitch Accuracy
- 0.16° (@ 1.0 m baseline)
- Roll Accuracy
- 0.5°
- Heave Accuracy
- 30 cm (DGPS), 5 cm (RTK)
- Timing Accuracy (1PPS)
- 10 ns
- Rate of Turn
- Max. 100°/s
- Cold Start
- < 60 s (typical)
- Hot Start
- < 10 s (typical)
- Heading Fix
- < 10 s (typical)
- Reacquisition Time
- < 1 s
- Velocity Limit
- 515 m/s
- Altitude Limit
- 18288 m
L-Band Specifications
- Channels
- Single channel
- Frequency Range
- 1525 ~ 1560 MHz
- Tracking Sensitivity
- -130 dBm
- Channel Spacing
- 5.0 kHz
- Satellite Signal Tracking
- Manual or automatic
- Acquisition Time
- 15 s (typical)
Communication Specifications
- Data Interfaces
- Serial / 3x full-duplex serial ports (3.3V CMOS)
- Data Interfaces
- USB / 1x USB Host/Device
- Data Interfaces
- CAN / 2 ports
- Data Interfaces
- Ethernet / 1x Ethernet port (10/100 Mbps)
- Baud Rate
- 4800 ~ 921600 bps
- Differential Formats
- Proprietary ROX, RTCM 2.x, RTCM 3.x, CMR, CMR+
- Data Formats
- NMEA 0183, NMEA 2000, Crescent binary
- Timing Output
- 1PPS, CMOS, active high, rising edge synchronized, 10 kΩ, 10 pF load
- Event Marker Input
- CMOS, active low, falling edge synchronized, 10 kΩ, 10 pF load
Electrical Specifications
- Operating Voltage
- 3.3 V DC ±5%
- Power Consumption
- 2.2 W
- Operating Current
- 670 mA
- Antenna Power Supply
- 5VDC
- Antenna Short Circuit Protection
- Yes
- Antenna Gain Range
- 10~40dB
- Antenna Input Impedance
- 50Ω
Environmental Specifications
- Operating Temperature
- -40℃ ~ +85℃
- Storage Temperature
- -40℃ ~ +85℃
- Humidity
- 95% non-condensing
- Shock
- EP455 Section5.14.1 Operational
- Vibration
- EP455 Section5.15.1 Random
Mechanical Specifications
- Dimensions
- 71L x 45W x 10H (mm)
- Weight
- 24g
- Status LEDs
- Power, primary/secondary antenna lock, differential signal
- Power/Data Connector
- 28-pin dual-row male header, 2mm pitch
- Antenna Connector
- MMCX female, straight
Auxiliary Sensors
- Gyroscope
- Provides heading smoothing and fast heading reacquisition; maintains auxiliary heading for up to 3 minutes during GNSS outage with accuracy better than 1°/min
- Tilt Sensor
- Provides pitch and roll data to assist in fast heading determination and reacquisition
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