Meridian M20Lite

Palm-Sized Visual IMU-RTK GNSS

Meridian M20Lite GNSS RTK is an innovative solution that combines ad-vanced technology with lMU, and 4G integration. lt is calibration-free, significantly boosting operational efficiency. The compact and lightweight design makes M20Lite a feasible and portable choice for engineering personnel in surveying and improving positional accuracy.

Longer Working Time

Offers a longer working time of up to 26 hours, allowing users to work for an entire day, also ensures that data is saved safely and securely without the risk of losing important information due to a dead battery.

Calibration-Free Solution

Highly equipped with 120° calibration-free lMU technology in a small body, M20Lite offers stability and high precision without the need for device calibration, extending the M20Lite’s application range to locations that traditional RTK systems cannot reach, opening up new horizons for product applications.

Calibration-Free Solution

Longer Working Distance

Equipping the MeridianLink protocol internal radio offers15km working range and increases flexibility. By eliminatingthe need for an external radio, the M20Lite becomes more lightweight, less complex, and more portable, which can lead to increased efficiency and convenience in the field.

Full Constellations

Supports BDS, GPS, GLONASS, Galileo, QZSS, and SBAS. Its 1408 channels offer comprehensive GNSS signal tracking capabilities.

Technical Specification

System
System	Linux
GNSS Signal
Channel	1408
BDS	B1I，B2I，B3I，B1C，B2a，B2b*
GPS	L1 C/A，L1C*，L2P(Y)，L2C，L5
GLONASS	L1，L2，L3*
GALILEO	E1，E5a，E5b，E6*
QZSS	L1C/A, L1C, L2C, L5, L6*
SBAS	L1, L5*
NavIC(IRNSS)*	L5
L-band	B2b PPP (Only for the Asian-Pacific Region)& HAS*
Data Format
Format	CMR, CMR+, RTCM2.X, RTCM3.X
Output	NMEA-0183, RINEX, TXT
Data Updating Rate	Up to 20Hz
Time to Recapture	<1s
Cold Start	<40s
Positioning Performance
Single Point Positioning (RMS)	Horizontal: 1.5m \| Vertical: 3.0m
DGPS (RMS)	Horizontal: 0.4m \| Vertical: 0.8m
Real-Time Kinematic (RMS)	Horizontal: ±(8mm+1×1ppm) \| Vertical: ±(15mm+1×1ppm)
Speed Accuracy (RMS)	0.03m/s
Static Accuracy (RMS)	Horizontal: ± (2.5mm+0.5ppm) \| Vertical: ± (5mm+0.5ppm)
Time Accuracy (RMS)	20ns
Speed Accuracy	≥0.03m/s
Tilt Compensation Accuracy	≤2cm(Tilt Angle≤60°, Up to 120°)
IMU Update Frequency	200Hz
Communication
Bluetooth	V5.2 Dual Mode.2.4GHz@max 5dBm
WiFi	IEEE 802.11b/g/n @max 17dBm
Cellular	LTE FDD: B1/3/5/7/8/20 LTE TDD: B38/40/41 Power max=23dBm Only single carrier mode is support
Storage	Up to 64GB
Internal Radio	Transmitting Power: 2 W (33 dBm) Frequency: 410~470MHz,Channel Spacing: 12,5kHz Protocol: SOUTH, TRIMTALK 450S, TRIMMK Ⅲ, TRANSEOT, SATEL, MERIDIANLINK Air Baud Rate: 9600, 19200,11000
Battery
Specifications	7.2V, 6600mAh lithium-ion Rechargeable Battery
Operating Times	RTK Rover: Up to 26 hours \| Static: Up to 30 hours
Charging	USB PD 15V/2A (Supports Quick Charging Adapter)
Environment
Operating Temperature	-40°C~+85°C
Storage Temperature	-55°C~+85°C
Anti-seismic	2m Pole Drop Onto Concrete
Dust & Waterproof	IP68
Physical
I/O Interface	1× USB type-C port; 1 × SMA antenna port; 1× SIM card slot; 1 × 5 pin LEMO port
Dimensions	119mm×119mm×76mm
Weight	662g