丨 Product Introduction
1. Positioning: Supports joint RTK calculation of four models such as Beidou, with fast initialization and short positioning convergence time.
2. Data output: up to 20Hz output, suitable for high-speed drone trajectory tracking.
3. High compatibility: Compatible with flight control systems such as Pixhawk and APM, making integration convenient.
4. Compass configuration: Built in RM3100 compass, providing precise heading information for flight.
丨 Specification parameters
|
Chip
characteristics
|
chip
|
UM980
|
|
working frequency
|
BDS: B1I B2I B3I B1C B2a B2b
GPS: L1 C/A L1C L2P (Y) L2C L5
GLONASS: L1 L2
Galileo: E1 E5a E5b E6
QZSS: L1 L2 L5 L6
|
|
Receiving channel
|
1408 channel
|
|
Accuracy
|
Single point positioning (RMS)
|
Plane: 1.5m
|
|
Elevation: 2.5m
|
|
DGPS(RMS)
|
Plane: 0.4m
|
|
Elevation: 0.8m
|
|
RTK(RMS)
|
Flat: 0.8cm+1ppm
|
|
Elevation: 1.5cm+1ppm
|
|
Observation accuracy (RMS)
|
BDS
|
GPS
|
GLONASS
|
Galileo
|
|
B1I/B1C/L1C/L1 C/A/E1/G1 pseudorange
|
10cm
|
10cm
|
10cm
|
10cm
|
|
B1I/B1C/L1C/L1 C/A/E1/G1 Carrier Phase
|
1mm
|
1mm
|
1mm
|
1mm
|
|
B3I/L2P(Y)/L2C/G2 pseudorange
|
10cm
|
10cm
|
10cm
|
10cm
|
|
B3I/L2P(Y)/L2C/G2
Carrier Phase
|
1mm
|
1mm
|
1mm
|
1mm
|
|
B2I/B2a/ B2b/L5/E5a/E5b pseudorange
|
10cm
|
10cm
|
10cm
|
10cm
|
|
B2I/B2a/ B2b/L5/E5a/E5b Carrier Phase
|
1mm
|
1mm
|
1mm
|
1mm
|
|
Time accuracy (RMS)
|
10ns
|
|
Speed accuracy (RMS)
|
0.03 m/s
|
|
Start Time
|
cold boot
|
<10s
|
|
Initialization time
|
<5s (typical value)
|
|
Initialize reliability
|
> 99.9%
|
|
Output data
|
Baud rate
|
115200bps (default) [Optional: 4800-921600]
|
|
Output interface
|
TTL
|
|
Output Protocol
|
NMEA0183、RTCM 3.3
|
|
update frequency
|
1Hz-20Hz (default 1Hz)
|
|
Differential
data
|
Differential data
|
RTCM 3.3/3.2/3.1/3.0
|
|
Carrier phase output
|
Support, output RAWX statement
|
|
FLASH
|
built-in
|
|
Electrical
specifications
|
working voltage
|
3~5.5V DC
|
|
power waste
|
<800mW @3.3V
|
|
Physical
parameters
|
size
|
Standard version:φ42*31.2mm Upgraded version:φ44*40.6mm
|
|
weight
|
Standard version: 13.2g Upgraded version: 21g
|
|
Connector
|
GH1.25mm 8pin
|
|
Environment
|
working temperature
|
-35℃-80℃
|
|
Storage temperature
|
-40℃-95℃
|
|
Compass
|
compass
|
RM3100
|
丨 product mix
Standard version:
Upgraded version:

Table 1 PIN Function
|
NO.
|
Pin Definition
|
Describe
|
|
1
|
VCC
|
Main power input+ 3.3V~5V
|
|
2
|
GND
|
Module grounding
|
|
3
|
TX1
|
Serial port 1 sends data, 3.3VTTL
|
|
4
|
RX1
|
Serial port 1 receives data, 3.3VTTL
|
|
5
|
SCL
|
I ² C serial clock(RM3100)
|
|
6
|
SDA
|
I ² C serial data(RM3100)
|
|
7
|
TX2
|
Serial port 2 sends data, 3.3VTTL
|
|
8
|
RX2
|
Serial port 2 receives data, 3.3VTTL
|
Packaging and Delivery:

Product Overview
The DALANG AK713RMG is a full-system RTK engine GNSS receiver module supporting both Rover and Base Station modes, delivering real-time centimeter-level differential positioning accuracy. Based on the UM980 chip, it is suitable for UAVs, automotive, and surveying applications.
Centimeter-Level RTK
Designed on the UM980 series, it supports BeiDou, GPS, Galileo, and GLONASS joint RTK calculation with fast initialization, achieving 1 cm static and 2 cm dynamic accuracy.
High-Frequency Data Output
Supports adjustable 1-20 Hz output, up to 20 Hz for high-speed UAV positioning, ensuring continuous and stable trajectory tracking.
Industrial Reliability
Features industrial-grade low-noise RF circuitry, strong multipath suppression, and a built-in quad helix antenna. Weighing only 13.2g, it maintains stable performance in harsh environments.
Broad Compatibility
Fully compatible with Pixhawk, APM, and other flight controllers, supporting NMEA0183 and RTCM 3.3 protocols for easy integration.
Key Features
-
Centimeter-Level RTK: 1 cm static, 2 cm dynamic accuracy
-
Four-System Support: BDS/GPS/Galileo/GLONASS
-
20 Hz Output: For high-dynamic applications
-
Strong Anti-Interference: Industrial RF with multipath suppression
-
Lightweight & Compact: 13.2g, Φ44×40.6mm
-
RM3100 Magnetometer: Accurate heading reference
-
Wide Temperature Range: -35℃ to 80℃
Providing high-precision, reliable positioning for UAVs, automotive, and surveying. DALANG AK713RMG - stability in dynamic environments.
About Us
DALANG is a dedicated manufacturer of high-performance GNSS modules and RTK positioning solutions, serving industries such as UAV navigation, precision agriculture, and geospatial mapping. With a clear focus on accuracy, reliability, and integration flexibility, we support both standard and custom applications across global markets. Our product lines are engineered to meet the evolving demands of real-time positioning with support for multiple GNSS constellations, including GPS, GLONASS, BDS, and Galileo.
Our production facility spans 2,500㎡ and includes advanced SMT lines, in-house R&D labs, and full functional testing for every unit shipped. With a team of 30+ GNSS engineers, we design and manufacture over 200,000 GNSS receivers and modules annually. Certified to ISO9001:2015, and compliant with CE and RoHS standards, we follow a strict quality assurance process from prototyping through mass production. We also provide firmware updates, system integration support, and full lifecycle product documentation.
Trusted by partners in over 30 countries, DALANG delivers fast, scalable manufacturing with personalized technical support. Our streamlined collaboration model—covering inquiry, consultation, prototyping, and delivery—ensures efficiency from first contact to deployment. Whether you're sourcing off-the-shelf GNSS hardware or launching a customized solution, DALANG is your dependable partner for accurate, cost-effective positioning systems.
FAQ
1. Who are we?
We are DALANG, a specialized manufacturer of GNSS modules and RTK positioning systems based in China, with a focus on high-precision solutions for UAVs, surveying, and smart agriculture.
2. How can we guarantee quality?
All products undergo strict multi-stage quality control, including SMT production, functional testing, and 100% final inspection. We are ISO9001:2015 certified and follow international compliance standards such as CE and RoHS.
3. What can you buy from us?
You can purchase GNSS receivers, RTK modules, base stations, antennas, flight control positioning systems, and other GNSS-related components and accessories.
4. Why should you buy from us not from other suppliers?
We combine strong in-house R&D, flexible OEM/ODM support, industrial-grade quality assurance, and fast global delivery. Our expertise in GNSS RTK ensures stable, accurate, and scalable solutions tailored to your specific use case.
5. What services can we provide?
We offer OEM/ODM customization, technical consulting, firmware support, prototyping, and global after-sales service. Our team works closely with international clients to ensure efficient communication and long-term support.