M20 GNSS RTK CORS Fanless Station

M20 All-constellation Multi-frequency High Precision RTK GNSS receiver.

M20 is Bynav new-generation proprietary high-precision RTK positioning module based on the Alice 22nm high performance automotive SoC, designed on the basis of ISO26262 ASIL B functional safety. The module supports GPS L1C/A/L1C/L2/L5, BDS B1l/B2l/B3l/B1C/B2a/B2b, GLONASS G1/G2, Galileo E1/E5a/E5b/E6, QZSS L1/L2/L5/L6(CLAS), NavIC L5, SBAS L1C/A and L-band. The built-in anti-interference and anti-deception technologies enhances RTK calculation on multiple modes and frequencies, which significantly improves RTK initialization time, measurement accuracy and reliability in complex environments such as satellite signal interference and loss. Relying on the excellent performance, M20 is well suited for autonomous driving, lane-level navigation, drones and robots.

M20 GNSS RTK CORS Station features:

• Fanless setup, passive cooling
• Raspberry-PI RPI4-MODBP-2GB
• BCM2711 SOC, ARM Cortex-A72@1.5GHz
• WiFi 2.4 and 5GHz 802.11 b/g/n/ac, Bluetooth 5.0 BLE
• ELT_RtkBase full-featured software
• ELT_RTKBase User Guide
• microSD card 32GB with pre-installed software and documentation
• GNSS antenna input with SMA connector
• USB C port with OTG option
• Gigabit Ethernet port with optional PoE support
• Time pulse LED, Ethernet LED
• Backup supercapacitor
• Dimensions 110x95x30 mm
• Weight: 245/265 gr.
• Fully assembled and ready to use
• Extensive mounting options - check accessories in the related products list

M20 module features:

• Based on the new generation GNSS SoC - Alice, designed on the basis of ISO26262 ASIL B functional safety
• 17.0 x 22.0 x 2.75 mm LGA package
• Supports on-chip RTK positioning calculation on all systems and multiple frequencies
• Supports 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 and SBAS L1C/A
• All-system multi-frequency RTK engine and advanced RTK technology
• Independent tracking of different frequencies and 60dB narrowband anti-jamming technology

Performance Specifications:

• Channels: 1507 channels, based on Alice

Frequency

• GPS L1C/A/L1C*/L2/L5
• BDS B1I/B2I/B3I/B1C*/B2a/B2b*
• GLONASS G1/G2
• Galileo E1/E5a/E5b/E6*
• QZSS L1/L2/L5/L6(CLAS*)
• NavIC L5
• SBAS* L1C/A

Single point positioning (RMS):

• Horizontal: 1.5 m
• Vertical: 2.5 m
• Data Update Rate 50 Hz Positioning

RTK (RMS):

• Horizontal: 1 cm + 1 ppm
• Initialization Reliability > 99.9%
• Vertical: 1.5 cm + 1 ppm
• Data Update Rate 10/20* Hz Positioning

Sensitivity:

• Acquisition: -146 dBm
• Re-acquisition: -156dBm
• Tracking: -156 dBm
• L-band: -133 dBm
• L-band BER: 10E-5

Accuracy:

• Carrier phase: <1mm (RMS)
• Pseudorange: <0.1m (RMS)
• Tracking: -156 dBm
• Time Accuracy(RMS): <20 ns
• Speed measurement: 0.03 m/s (RMS)

Anti-jamming protection:

• Jamming to signal ratio: 65dBc
• Multitone jamming: 6 or more pulses
• Narrowband jamming: 10% of the signal bandwidth
• Fast sweep jamming protection

Physical Characteristics:

• Packaging: 54 pin LGA
• Dimension: 17.0 × 22.0 × 2.75 mm
• Weight: 1.88 ± 0.03 g

Environmental Specifications:

• Working temperature: -40 °C ~ +105 °C
• Storage temperature: -55 °C ~ +150 °C
• Humidity: 95% No condensation
• Vibration: MIL-STD-810F
• Shock: MIL-STD-810F

Communication Interfaces:

• 3 × UART (LVTTL)
• 2 × CANFD (shared with UART0, UART1)
• 1 × SPI (shared with UART2 and RMII)
• 1 × RMII 100Mbit (shared with UART2 and SPI)

Note: Items marked with * are only supported by specific firmware.

CORS Station recommended to be used in Base Operation Mode!

• Antenna for RTK BASE station which perfectly suitable with this module.
• Ultra Light Helix Antenna for drone

• M20 Product Summary
• M20 Datasheet
• Bynav Interface Protocol
• BY_Connect Evaluation Software
• BY Connect User Manual