All-in-one RTK GNSS Helical Antenna Module for Drone HM-D20
- All-in-One RTK: Integrated helical GNSS antenna, RTK engine, and differential communication
- Centimeter-Level Accuracy: L1/L5 multi-constellation RTK with up to 20 Hz positioning updates
- 4G or LoRa: Connect to CORS/NTRIP over 4G or deploy a factory-paired local LoRa base station
- Compact and Lightweight: Ø54.5 × 53 mm and only 38.2 g.
- Easy Integration: NMEA or UBX output, 8-pin interface, 5V input, 3.3V UART, and onboard magnetometer.
Original price was: $150.00.$120.00Current price is: $120.00.
GNSS / RTK
|
Positioning Capability |
L1 / L5 Dual-frequency RTK |
|
Horizontal Accuracy |
1.0 cm + 1 ppm |
|
Vertical Accuracy |
1.5 cm + 1 ppm |
|
Max Update Rate |
10 Hz |
|
RTK Time to First Fix |
45 s |
4G / LoRa Correction Link
|
4G Version |
CORS / NTRIP |
|
LoRa Default Frequency |
915 MHz |
|
LoRa Communication Range |
Up to 6 km |
|
LoRa Networking |
One base station to one or multiple rovers |
|
Max Number of Rovers |
4096 |
GNSS Receiver
|
Satellite Systems |
GPS, BeiDou, Galileo, QZSS, GLONASS, IRNSS |
|
Tracking Channels |
200 |
|
Cold Start / Hot Start |
28 s / 1 s |
|
Antenna System Gain |
40 dB |
Mechanical & Interfaces
|
Dimensions / Weight |
Φ54.5 × 53 mm / 38.2 g |
|
Operating Voltage |
5 V ±0.5 V |
|
Data & Interface |
8-pin / NMEA / UBX |
|
Magnetometer |
QMC5883L, SCL / SDA |
Robotics, Survey Mapping
HM-D20 is a compact, high-performance dual-band GNSS RTK module, delivering robust centimeter-level positioning performance for moving platforms in challenging operational environments.
A 38 g RTK solution integrating antenna, positioning, and communication modules in one lightweight device.
RTK technology enables centimeter-level positioning accuracy for applications requiring precise location information.
Support 4G and LoRa communication options for flexible RTK correction-data transmission.
Compact hardware and standard interfaces make the RTK module easy to integrate into different platforms and systems.
Adopting L1/L5 dual-band RTK for centimeter-level positioning. Field tests verify that HM-D20 outperforms mainstream modules on RTK fixed-solution continuity under complex urban conditions, with fewer float-solution breakpoints and superior navigation stability for drones, autonomous vehicles and survey-mapping missions.
RTK Trajectory Positioning
Enable centimeter-level path tracking for drones and unmanned ground vehicles, with accurate trajectory recording and reliable outdoor navigation.
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.
Provides Demos And User Manuals For Raspberry Pi / Jetson Orin / Arduino, Enabling Easier Development Integration And Strong Scalability
Open source SDK, examples & tools
Simple code and rich development resources
Dedicated technical support for your project
Supports flexible multi-platform development
- HM-D20 Module x1
- USB-C Cable x1
- UART Cable x3
- USB-TTL Module x1
- SMA Antenna x1
- HM-D20 Module x1
- UART Cable x2
- USB-TTL Module x1
- SMA Antenna x1
HM-D20 is designed with dual-frequency, multi-constellation GNSS tracking and advanced multipath mitigation algorithms. Even in complex urban environments with building obstructions, it maintains high availability of satellite signals and can achieve stable centimeter-level RTK positioning in most scenarios.
HM-D20 supports both 4G and LoRa channels. You can select either cellular network or long-range LoRa radio to receive RTK correction data for different working scenarios.
HM-D20 supports all major GNSS constellations, including GPS, GLONASS, Galileo, BeiDou (BDS), and QZSS, providing multi-constellation tracking for improved availability and reliability worldwide.
Yes. HM-D20 features a compact design, standard interfaces (UART / USB), and comprehensive SDK support, making it easy to integrate into UAV, robot, and autonomous vehicle platforms with minimal development effort.
Yes. HM-D20 fully supports standard NTRIP protocol and is compatible with most third-party CORS networks and base-station services worldwide. Users can directly connect to public or private CORS services via 4G.
Our engineering team provides technical support to help developers solve integration issues quickly. We also provide flexible international shipping options available.
Response within
Online Support
Minimum Order Quantity
Fast & Reliable Worldwide Delivery
| 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]
Reviews
There are no reviews yet.