Helical Antenna RTK Module HM-D20
- RTK Positioning: Helical Antenna RTK Module, Built-in GNSS module, supports RTK differential positioning
- Integrated Design: Built-in GNSS module and antenna, ready for use without an external antenna.
- RTK Horizontal Accuracy: 0.01 m + 1 ppm CEP· Multi-channel Communication: The GNSS chip supports up to 200 search channels· Compact & Lightweight: Weighing only 20g, easy for integration and ideal for small devices.
Original price was: $150.00.$120.00Current price is: $120.00.
DIMENSIONS
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Frequency band |
GPS L1/L5, BeiDou B1/B2A/B2I, GLONASS G1, Galileo E1/E5, QZSS L1/L5, IRNSS L5 |
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RTK position accuracy |
H: 1cm + 1ppm, V: 1.5cm + 1ppm |
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Protocol |
NMEA 0183 output and RTCM input at rover side |
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Baud Rate |
115200 bps |
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Dimensions |
Φ44*37mm |
PRODUCT DETAILS
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Timing synchronization accuracy |
20ns |
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L1 and L5 GNSS antenna system |
At least 40db high gain |
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Interface |
TTL level UART interface |
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Operating Temperature |
-40 ℃ - 85 ℃ |
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Waterproof |
IP67 |
Integrated Design, Easy to Use
Built-in GNSS module and antenna, ready for use without an external antenna.
High Precision Positioning
Utilizes RTK technology with L1/L2/L5 frequency bands for centimeter-level accuracy, ensuring reliable positioning for drones and autonomous vehicles. Users benefit from reduced signal errors and enhanced navigation stability, ideal for surveying and mapping applications where precision is critical.
Plug-and Play Installation
RTK Module Connection Diagram，Designed for UAVs, unmanned vehicles, ships, and various positioning systems, offering flexibility across industries like agriculture, logistics, and robotics. Its adaptability meets diverse needs, ideal for enthusiasts and professionals seeking a multipurpose solution
Waterproof and Durable
Constructed with a rugged housing, resistant to moisture and harsh weather conditions. This durability extends the antenna’s lifespan and ensures reliable functionality in marine or industrial settings, never worry about environmental damage.
Why choose us
We specialize in perception and positioning modules for robots and UAVs, and are a world-leading supplier of navigation devices and solutions.
Independent Research and Development Team
We have a professional independent R&D team, focusing on innovation of perception and positioning technology
technical support services
Provide professional technical support for product integration and application
Direct manufacturing from the source factory
Manufactured by the original factory, with in-house production for stable supply
Customized products on demand
We customize products on demand and provide one-stop technical support
Self-manufactured with steady supply guaranteed
In-house production for stable supply, supporting customized OEM/ODM needs
Customer Reviews
FAQ
1. Q: Are the latitude, longitude, and altitude data from the module or the RTK antenna?
A: The positioning data corresponds to the phase center of the RTK antenna.
2. Q: Can satellite coordinate data be integrated into our own software system?
A: Yes. The RTK module outputs data via a serial interface and provides ROS, Python, and C++ demos. Users can refer to these demos to parse and integrate the data into their own systems.
3. Q: Where is the positioning data stored — base station or rover?
A: The data is stored on the rover (mobile unit).
4. Q: What is the output interface of the base station — TTL or RS232?
A: The base station uses a TTL interface.
5. Q: How to connect RTK positioning to a flight controller (PX4)?
A: Connect the RTK module to the GPS1 or GPS2 port on the Pixhawk flight controller (a GPS1 communication cable is provided). Then follow the user guide to complete parameter configuration.
6. Q: Do we need to configure interfaces or parameters via upper computer software or serial debugging tools?
A: No additional configuration is required by default. The module is pre-configured at the factory, and a configuration guide is provided if customization is needed.
7. Q: Is there latency in RTK positioning data? Is it fixed?
A: After the chip completes computation, data is output immediately with minimal internal delay.
However, overall latency mainly depends on user-side protocol parsing, which may vary depending on the application environment.
8. Q: Can RTK data be transmitted to a microcontroller (MCU)?
A: Yes. The module provides a 7-pin UART interface with TTL output, making it suitable for MCU integration.
9. Q: Can RTK data be stored on the module itself?
A: No. The module does not support onboard storage. Data must be parsed and stored externally (e.g., via a computer or embedded system).
10. Q: Can RTK be used in underground parking lots or tunnels?
A: No. RTK requires open-sky conditions with clear satellite visibility and cannot function in GPS-denied environments such as underground or tunnels.
11. Q: Does it support ROS2? Are ROS2 drivers available?
A: Yes. We provide both ROS1 and ROS2 drivers for integration.
Applications
Robotic Dog
Education Research
Drone
Robot
| Weight | 0.025 kg |
|---|---|
| Communication |
4G ,Lora |
Contact us
TEL: +8618926195421
Huangmei Road, Huangge Town, Nansha District, Guangzhou City, Guangdong Province, China
Email:[email protected]
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