丨 Product Introduction
1. Advanced technology: Based on UBX-M9140, stable and accurate positioning in extreme environments.
2. Four mode combination: compatible with four systems including Beidou, with fast and reliable initialization.
3.25Hz rate: Fast data output, able to quickly respond to dynamic environments.
4. Anti noise design: Industrial grade low-noise RF circuit, anti multipath interference, clear signal acquisition.
丨 Specification parameters
|
Specification parameters
|
|
Chip
characteristics
|
1
|
chip
|
UBX-M9140
|
|
2
|
Signal channel
|
92-channel
|
|
3
|
working frequency
|
GPS: L1 C/A,
QZSS: L1 C/A/S,
GLONASS: L10F，
BeiDou: B1I,
Galileo: E1B/C ，
SBAS L1 C/A: WAAS, EGNOS, MSAS, GAGAN
|
|
4
|
Time pulse frequency
|
0.25 Hz-25 Hz (default 1Hz)
|
|
5
|
Time pulse signal accuracy
|
RMS：30ns
|
|
99% ：60ns
|
|
6
|
Horizontal
position accuracy
|
1.5m CEP (with SBAS)
|
|
2.5m CEP (without SBAS)
|
|
7
|
Start Time
|
Cold start: 24 seconds
|
|
Warm start: 2s
|
|
Hot start: 2s
|
|
8
|
sensitivity
|
Tracking:- 167 dBm
|
|
Re capture:- 160 dBm
|
|
Cold start:- 148 dBm
|
|
Hot start:- 159 dBm
|
|
9
|
Speed accuracy
|
0.05m/s
|
|
10
|
Baud rate
|
38400bps (default) [Optional: 4800-921600]
|
|
11
|
Output Protocol
|
NMEA-0183、RTCM 3.3、UBX
|
|
12
|
Output level
|
USB
|
|
13
|
Extreme working state
|
Gravity acceleration limit: 4g
|
|
Height limit: 80,000m
|
|
Speed limit: 500m/s
|
|
Antenna
characteristics
|
1
|
Antenna specifications
|
18*18*4
|
|
2
|
Maximum gain of antenna
|
2.5dBi
|
|
|
3
|
Polarization mode
|
RHCP
|
|
4
|
Noise coefficient
|
≤0.8dB
|
|
5
|
LNA gain
|
L1：20±2dB
|
|
Working
characteristics
|
1
|
working voltage
|
3V-5.5V DC(Typical value: 5.0v)
|
|
2
|
power waste
|
<100mW @5V
|
|
3
|
size
|
60*24*9mm
|
|
4
|
weight
|
11g
|
|
5
|
Connector
|
Standard USB interface
|
|
6
|
working temperature
|
-35℃-75℃
|
|
7
|
Storage temperature
|
-40℃-85℃
|
Table 1 Wiring Definition
|
Name
|
Describe
|
|
VCC
|
power supply
|
|
D-
|
Transmission data terminal-
|
|
D+
|
Transmission data terminal+
|
|
GND
|
grounding
|
High-Performance GNSS Navigation and Positioning Module
The DLTX-1 is a high-performance GNSS receiver based on UBX-M9140 technology, equipped with a high-performance ceramic antenna. Capable of simultaneously tracking satellite signals from four major GNSS systems, it maintains stable positioning even in complex urban environments and weak signal conditions. Particularly suitable for mobile platforms such as light UAVs, USVs, and UGVs, it provides reliable location services for aerial surveying, remote monitoring, and security surveillance applications.
Exceptional Positioning Performance
The module supports combined positioning from BeiDou, GPS, Galileo, and GLONASS systems, offering excellent global compatibility. The 25Hz high data output rate ensures accurate tracking of high-speed mobile platforms, meeting real-time positioning requirements in dynamic
environments.
Industrial-Grade Reliability
Utilizing industrial-grade low-noise RF design, it effectively suppresses multipath interference, ensuring stable operation in complex electromagnetic environments. The wide operating temperature range (-35°C to 75°C) adapts to various harsh conditions.
Convenient Integration Design
Standard USB interface for plug-and-play operation. Compact 60×24×9mm size, weighing only 11g, facilitates quick integration into various unmanned platforms. A-GPS support significantly improves time-to-first-fix performance.
Core Advantages
Multi-System Combined Positioning
Supports four major satellite navigation systems for global precise positioning
High Dynamic Response
25Hz data output rate for accurate tracking of high-speed targets
Strong Anti-Interference Capability
Professional RF design maintains stable performance in complex environments
Easy Integration
Standard USB interface simplifies installation process
Providing Precise and Reliable Positioning Core for Your Unmanned Systems
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.
