Meridian M3

Mini IMU-RTK GNSS

The Meridian M3 is a user-friendly and portable smart antennawith lMU that offers high-quality positioning data, greatly mproves your working efficiency. Supports multiple constellation and frequency tracking, calibra-tion-free tilt compensation lMU technology, it is designed to be worn and used on-the-go, and it can provide professional-grade results. Equipped with a high precise GNSS module, the M3 is capable of achieving centimeter-level positioning accuracy using CORS differential data.

Full Constellationsand Multi-frequency

The Meridian M3 is a versatile device that supports various satellite constellations including BDS, GPS，GLONASS, Galileo, QZSS, and SBAS. With its 1408 channels and full support for BDS-3, it offers comprehensive GNSS signal tracking capabilities.

Built-in lMU Feature

Equipped with calibration-free lMU technology insmall body, brings you to focus on your surroundingsand not the bubble to measure the points that previ-ously could not be measured, making your stake out more efficiently and conveniently than ever before with increased speed, safety and comfort and greatlyimproving your working efficiency.

Ideal for Multiple Applications

The M3 is suitable for a range of survey and layout tasks,such as road construction, power line surveying, site lev-eling control, and CAD applications.

All-in-view RTK Positioning

Embedded with a high precision GNSS module, the M3 supports centimeter-level CORS differential data posi-tioning.

Technical Specification

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
Data Updating Rate	Up to 20Hz
Initialization Time	≤5 Seconds (Typical)
Cold Start	≤30 Seconds
Hot Start	≤3 Seconds
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
Tilt Compensation Accuracy (Up to 120°)	≤1.5cm(Tilt Angle≤30°)
Communication
Bluetooth	Bluetooth V4.0
Indicator
LED Indicators	Power Indicator x1 Bluetooth Indicator x1 Differential Data Indicator x1 Satellite Indicator x1
Battery
Specifications	8.4V/1800 mAh lithium-ion Rechargeable Battery
Operating Times	RTK Rover: Up to 10 hours (Typical Power Consumption)
Environment
Operating Temperature	-20°C~+75°C
Storage Temperature	-40°C~+85°C
Anti-seismic	1.6m Pole Drop Onto Concrete
Dust & Waterproof	IP67
Humidity	95% No Condensation
Physical
I/O Interface	Type-C & Power Button
Dimensions	108 mm x 52 mm x 36 mm
Weight	≤170g