3DM-RTK Modem

3DM-RTK Modem
Performance Grade	High Performance Grade
Inputs/Outputs	4xGPIO
Weight	46 g
Weight	1.811 oz
Size	65.1 mm x 47.1 mm x 14.2 mm
Size	2.56 in x 1.85 in x 0.56 in
Power Consumption	1 W
Input Voltage	5 V to 16V
Minimum Operating Temperature	-40 °C
Maximum Operating Temperature	85 °C
Minimum Operating Temperature	-40 °F
Maximum Operating Temperature	185 °F
MTBF	389237 h
Ingress Protection Rating	Not Rated
Mounting Style	Screw Down

Performance Grade

High Performance Grade

Inputs/Outputs

4xGPIO

Weight

46 g

Weight

1.811 oz

Size

65.1 mm x 47.1 mm x 14.2 mm

Size

2.56 in x 1.85 in x 0.56 in

Power Consumption

1 W

Input Voltage

5 V to 16V

Minimum Operating Temperature

-40 °C

Maximum Operating Temperature

85 °C

Minimum Operating Temperature

-40 °F

Maximum Operating Temperature

185 °F

MTBF

389237 h

Ingress Protection Rating

Not Rated

Mounting Style

Screw Down

Software

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InertialConnect
SensorConnect
SensorCloud
SensorCloud RTK
MSCL and MIP SDK

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InertialConnect Screenshot - GNSS Statuses

InertialConnect is the preferred software solution for MicroStrain inertial sensors. With InertialConnect, you can easily configure your sensors, adjust parameters, upgrade firmware, and deploy preconfigured parameter files. You can also verify sensor outputs with intuitive visualizations, including times eries data, position data, and statuses.

InertialConnect is compatible with both PC desktop and Linux operating systems, making it your go-to solution for precision and efficiency in inertial sensor management.

Learn More

SensorConnect is the next generation in desktop sensing software.

From configuration of nodes and starting networks, to collecting and analyzing data in real-time, SensorConnect provides a modern, powerful experience with our Wireless, Inertial, and Displacement products.

Using our intelligent data collection and graphing algorithms, you are able to visualize massive amounts of data instantly, and then zoom in on points of interest just as fast.

Built in MathEngine functionality allows for both real-time and post-processed math, such as generating FFTs, averages, RMS, etc.

Learn More

SensorCloud is a unique sensor data storage, visualization, and remote management platform that leverages powerful Cloud computing technologies to provide excellent data scalability, rapid visualization, and user programmable analysis.

MicroStrain sensors can instantly upload their data to SensorCloud via an ethernet-connected WSDA-2000. Once uploaded, your data is securely stored in the Cloud and can be accessed from anywhere, or downloaded for offline use.

Configurable alerts can be set to help notify you of real-time event in your data.

MathEngine allows you to perform analytics on your data, all in the Cloud. Pre-built functions are available for ease of use, while IPython Notebooks allow advanced users to write custom scripts to be run on their data once, or on a schedule.

Visit SensorCloud navigate_next

SensorCloud RTK is a multi-continent, IP-based RTK cloud network that delivers centimeter-level position accuracy from day one without complex setup, featuring network coverage across the U.S., Europe and beyond.

When paired with compatible MicroStrain navigation systems, it offers seamless scalability from development to production with professional technical support throughout.

Visit RTK.Sensorcloud navigate_next

The MicroStrain Communication Library (MSCL) is our open-sourced API that simplifies writing code to interact with our sensors. MIP SDK is a lightweight C/C++ library for interacting with MicroStrain G and C-series products via baremetal and resource constrained microcontrollers.

Both APIs are readily available and fully-documented on GitHub, featuring valuable tools such as full documentation, example code, and a quick start guide.

Learn More About MSCL

The 3DM-RTK Modem is a cellular-enabled network interface modem specifically designed to pair with the 3DM-GQ7-GNSS/INS navigation system. Together, they form HBK's complete single-vendor RTK solution by connecting the GQ7's native RTK capability to SensorCloud RTK's global correction network, delivering centimeter-level positioning without base station infrastructure.

The 3DM-GQ7-GNSS/INS is HBK's first dual-antenna, RTK-enabled INS with native RTK capability, while the 3DM-RTK Modem provides the cellular connection to deliver corrections. This integrated design creates the industry's most complete out-of-the-box RTK navigation solution, eliminating the complexity of integrating components from different vendors.

The 3DM-RTK Modem connects directly to SensorCloud RTK's high-density base station network via cellular connection, completely eliminating the need to purchase, install, maintain, or calibrate your own base stations. This plug-and-play solution provides immediate access to professional-grade RTK corrections worldwide.

SensorCloud RTK provides comprehensive coverage across the United States, Europe, United Kingdom, Korea, Australia, New Zealand, and Japan. The high-density base station network is professionally maintained with built-in reliability, and coverage continues expanding to new regions based on customer demand.

When paired with compatible MicroStrain navigation systems like the 3DM-GQ7-GNSS/INS, the 3DM-RTK Modem delivers:

1 cm + 1 ppm horizontal accuracy
Less than 2 cm positioning accuracy
Immediate RTK fix times
0.05 m/s velocity accuracy
Industry-leading 1 kHz update rates

The 3DM-RTK Modem connects directly to the AUX port on the 3DM-GQ7-GNSS/INS, creating a seamless plug-and-play connection. Once the GQ7 has a valid GNSS position, it automatically streams NMEA data to the RTK modem, which then connects to the cellular network and begins streaming RTCM correction data back to the GQ7's RTK-enabled receivers.

The system is ideal for:

Beyond Visual Line of Sight (BVLOS) drone operations
Autonomous vehicle navigation and testing
Precision agriculture and farming automation
Wheeled and legged robotics
Simultaneous Localization and Mapping (SLAM)
Delivery robots requiring precise positioning
Any autonomous system needing centimeter-level accuracy

The 3DM-GQ7's native RTK capability includes dual multiband GNSS receivers with 184 tracking channels each, dual-antenna heading immune to magnetic interference, and advanced tightly-coupled Extended Kalman Filter. When combined with the 3DM-RTK Modem, these features enable superior RTK performance, faster convergence times, and more robust operation in challenging GNSS environments.

Absolutely. The system features sophisticated orientation algorithms, precise internal time management, and highly adaptable event triggering systems designed for complex navigation applications. Its compact size and tactical-grade performance make it perfect for autonomous robotics requiring reliable navigation.

SensorCloud RTK eliminates base station costs, installation complexity, ongoing maintenance, calibration requirements, and coverage limitations. Traditional base stations require significant investment and expertise, while SensorCloud RTK provides professional-grade coverage instantly with no infrastructure investment and global scalability.

For development and testing, use the complete 3DM-GQ7-GNSS/INS + 3DM-RTK Modem system to validate performance and develop applications. For production deployment, you can transition to the cost-optimized 3DM-CV7-GNSS/INS while maintaining the same SensorCloud RTK subscription and cellular modem infrastructure, providing cost savings at scale while preserving system architecture and performance.

The integrated system provides comprehensive real-time status monitoring through HBK's software interfaces, including the GQ7's RTK Fix status and quality, dual-antenna heading performance, number of satellites being tracked by each receiver, age of RTK corrections, cellular signal strength from the RTK modem, and correction data delivery status - crucial for debugging and ensuring reliable autonomous operation.

Contact HBK about adding RTK coverage to your area! HBK has a base station installation program and continues expanding coverage based on customer demand. We can provide information about timeline and requirements for extending coverage to new regions.

MicroStrain - Product Data - 3DM RTK - A4	Data Sheets	English
4 Ways to RTK - One Pager	Buyers Guide	English
PSA-05R-090 9 Volt DC Power Supply for RS-232 Cable	Accessory Guide	English
Micro-D to RS232 Communication and Power Cable	Accessory Guide	English
Craft Cable with Micro DB9 and Flying Leads	Accessory Guide	English
6285-0100 RTK Modem Connectivity Kit	Accessory Guide	English
Micro D-to-USB Communication and Power Cable	Accessory Guide	English
RTK Assembly Drawing	Technical drawing	English
3DM-GQ7-GNSS/INS Dynamic Performance Test Report	Application Note	English

3DM-RTK Declaration of Conformity (EU)	Declaration of Conformity	English
3DM-RTK Declaration of Conformity (UK)	Declaration of Conformity	English
MicroStrain REACH-SVHC Compliance Declaration	Declaration of Conformity	English

Main Menu

Main Menu

Main Menu

Main Menu

3DM-RTK Modem

Device

Operation

Package

Software

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Main Menu

Main Menu

Main Menu

Main Menu

3DM-RTK Modem

Device

Operation

Package

Software

What is the 3DM-RTK Modem and how does it work with the 3DM-GQ7-GNSS/INS?

Why were the 3DM-GQ7-GNSS/INS and 3DM-RTK Modem designed to work together?

How does the 3DM-RTK Modem with SensorCloud RTK eliminate base station complexity?

Where is SensorCloud RTK coverage available?

What accuracy does the 3DM-RTK Modem achieve with SensorCloud RTK?

How does the 3DM-RTK Modem connect to the 3DM-GQ7-GNSS/INS?

What applications benefit most from the 3DM-RTK Modem with SensorCloud RTK?

What specific advantages does the 3DM-GQ7 offer when paired with the RTK Modem?

How does SensorCloud RTK compare to setting up my own RTK base station?

How does SensorCloud RTK handle areas with poor cellular coverage?

How does SensorCloud RTK scale from development to production with the GQ7 and RTK Modem?

What real-time monitoring capabilities does the 3DM-GQ7 + 3DM-RTK system provide?

What happens if my area isn't covered by SensorCloud RTK?

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