Products

MM117AX

Single-frequency RTK High-precision Heading Module

The directional attitude measurement with double antenna RTK algorithm can realize the high-precision directional attitude measurement function. It has the characteristics of small package size, high orientation precision, low power consumption and high integration.

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Product Introduction

MM117AX is a single-frequency RTK high-precision heading module. Built on proprietary high-precision chip technology, it seamlessly supports multiple constellation including BDS, GPS, and QZSS, and utilizes dual-antenna RTK algorithms for high precision heading measurement. Marked by compact size, high heading accuracy, low power consumption and high integration, MM117AX offers an optimized performance for advanced heading applications.

Features

•Support BeiDou-3 signals	• Concurrent reception of BDS/GPS /QZSS signals
• Support RTK high-precision positioning and dual-antenna heading	•Integrated high-precision attitude measurement algorithms, enabling output of 3D orientation data.
• Highly integrated design with INS sensor	•Low-power consumption design, avg. current ≤ 100mA
•Compact 22242.4mm package design

Application Fields

High-precision heading applications such as base station orientation tower surveying and construction machinery attitude control.

Specifications

Power Supply
Voltage	3.0V～3.6V
RF input
Signal Tracking	BDS B1I
	GPS/QZSS L1C/A
Physical
Package	22×24×2.4 mm
I/O Data Interface
UART	Default 115200bps
GNSS Performance
TTFF^[1]	Cold starts：≤30s
	Hot starts：≤1s
RTK Initialization Time	＜15s
Heading Initialization Time	＜60s
Position Accuracy ^[2]	PVT：2m
	RTK：2cm+1ppm
Heading accuracy ^[³^]	Yaw：0.2°/1m
	Pitch：0.05°
	Roll：0.05°
Velocity Accuracy^[⁴^]	0.1m/s
Sensitivity^[⁵^]	Tracking：-160dBm
	Acquisition：-147dBm
Nav. Update Rate	1Hz（Default）
Nav. Data Format	NMEA 0183 V4.1
	RTCM3.X
^[1]Test conditions：More than 6 available satellites, all satellites signal strength not below -130dBm; ^[2]Test conditions：CEP, 50%，More than 8 available satellites, 24hours static, all satellites signal strength not below -130dBm; ^[3] Test conditions：CEP, 50%，yaw; ^[4]Test conditions：CEP, 50%@30m/s; ^[5]Test conditions：Test with LNA of good performance externally.