Meridian M7

High-Performance Integrated GNSS Base

M7 High-Performance GNSS Receiver

The Meridian M7 features a new-generation RTK engine and supports tilt measurement, allowing for high-precision surveying in complex environments. It also has built-in 4G connectivity, Bluetooth, Wi-Fi, and a 5W data transmission radio, enabling high-speed data transfer and User- friendly WebUI， which improves efficiency and convenience. The M7 has a removable battery and a rugged design, making it suitable for outdoor and harsh environments. Equipped with 5 watt built-in radio and 32GB internal storage, allowing users to attain accurate, reliable solutions, makes M7 the perfect base station receiver.

Longer Working Distance

Equipping the Meridian M7 with a 5W internal radio offers numerous benefits, including up to 18km range, increased flexibility and improved safety.

Longer Working Time

Offers a longer working time of up to 20 hours with 2 batteries, allowing users to work for an entire day.

Highly Integrated Four-in-one Antenna

The highly integrated four-in-one antenna on the M7 provides several advantages, including saving space, improving performance and reliability, and reducing the failure rate during use, making M7 more portable and easier to handle, increasing the efficiency and accuracy of measurements.

Powerful removable battery

Removable batteries provide flexibility, allowing easy replacement and uninterrupted device usage, enhancing convenience for users. Removable batteries enhance device usability and offer a cost- effective solution for prolonged use.

Large-capacity Data Storage

Up to 32GB internal memory is a valuable feature that can enhance the device’s capabilities and streamline data management for users

Enhanced Tilt IMU

Equipped with calibration-free IMU, support up to 60° tilt angle within 2cm accuracy, and up to 120, allows for quick and accurate measurements without leveling the pole. Concentrate on where the pole tip needs to go, which is especially useful during a stakeout.

Technical Specification

GNSS Signal②
Channels	1408
GPS	L1C/A, L1C, L2P(Y), L2C, L5
BDS	B1I, B2I, B3I, B1C, B2a, B2b*
GLONASS	L1, L2, L3*
GALILEO	E1, E5a, E5b, E6*
NavIC(IRNSS)*	L5
QZSS	L1C/A, L1C, L2C, L5, L6*
SABS	L1, L5*
L-Band	B2b PPP (Only for the Asian-Pacific Region) & HAS*
Positioning Performance
High-precision static GNSS Surveying	Horizontal: 2.5mm + 0.1ppm RMS \| Vertical: 3.5mm + 0.4ppm RMS
Static and Fast Static	Horizontal: 2.5mm + 0.5ppm RMS \| Vertical: 5mm + 0.5ppm RMS
Post Processing Kinematic (PPK / Stop & Go)	Horizontal: 8mm + 1ppm RMS \| Vertical: 15mm + 1ppm RMS
Initialization reliability	Typically>99.9%
Code Differential GNSS Positioning	Horizontal: ±0.25m+1ppm RMS \| Vertical: ±0.5m+1ppm RMS \| SBAS: 0.5m (H), 0.85m (V)
Real-Time Kinematic (RTK)	Horizontal: 8mm+1ppm RMS \| Vertical: 15mm+1ppm RMS
Initialization time	Typically <10s \| Initialization reliability: Typically > 99.9%
Time to first Fix	Cold start: < 45 s \| Hot start: < 30 s \| Signal re-acquisition: < 2 s
Tilt Survey Performance	≤2cm within 60°, Up to 120°
Communication
Bluetooth	5.0 , 2.4GHz
WIFI	IEEE 802.11a/b/g/n/ac , 2.4G
Cellular(4G)	LTE TDD: B34/38/39/40/41 LTE FDD: B1/3/5/7/8/20/28 WCDMA: B1/5/8 GSM: B850/900/1800
Internal UHF Radio	Frequency: 410-470MHz Transmitting power: 2W / 5W adjustable Protocols：SOUTH, TRIMTALK 450S, TRIMMK III, TRANSEOT, SATEL, MERIDIANLINK
Physical
Removable Battery	7.2V / 7000mAh lithium-ion removable battery
RTK Rover / Static	RTK Rover (Network) for 10 hours2 \| Static: up to 13 hours2
Control Panel Display	1.54 inch OLED Display
LED Lamp	Satellite, Signal, Power
Physical button	3
Environment
Water / Dustproof	IP68
Shock and vibration	Designed to survive a 2m natural fall onto concrete
Humidity	100%, condensing
Operation temperature	-45℃~+70℃
Storage temperature	-55℃~+85℃
I/O Interface
Port	1 × Micro USB port, 1 × Type C 1×LEMO port( 5 Pin)
Data Formats	1 ×SIM card slot , 1 ×Type C port 1 ×UHF port
Output rate	Up to 20Hz
Static data format	DAT
CMR & RTCM	CMR, RTCM 2.x, RTCM 3.0, RTCM 3.2
Navigation outputs ASCII	NMEA-0183