丨 Product Introduction
1. Dual frequency L1/L5: Multi system RTK centimeter level positioning
2. Stacked ceramic antenna: high sensitivity, stable in complex environments
3. External high gain+LNA: high signal-to-noise ratio, fast positioning
4. Lightweight and compact: Multi way installation with magnetic suction/screws
丨 Specification parameters
|
Specification parameters
|
|
Antenna
parameters
|
1
|
Antenna name
|
GNSS antenna
|
|
2
|
Ceramic size (mm)
|
25*25*4/35*35*4
|
|
3
|
Usage frequency
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GPS：L1：1575.42±1.023MHz，
L5：1176.45±1.023MHz
GLONASS：L1:1602+0.5625*K(MHz)
BDS：B1: 1561±1.023MHz
GALILEO：E1: 1575
|
|
5
|
gain
|
L1:5±1dBi L5:3±1dBi
|
|
6
|
V.S.W.R
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≤2
|
|
7
|
Minimum -10dB bandwidth (MHz)
|
10min
|
|
8
|
impedance
|
50Ω
|
|
9
|
Polarization mode
|
RHCP
|
|
10
|
tcf
|
20ppm/deg.℃ max
|
|
LAN
|
|
|
|
|
1
|
Gain (Gain)
|
L1:32±3dBi L5:28±3dBi
|
|
2
|
figure
|
<1dB
|
|
3
|
VSWR
|
<2.0
|
|
4
|
output vswr
|
<2.0
|
|
5
|
voltage
|
DC 3~5V
|
|
6
|
electric current
|
15~25mA
|
|
7
|
impedance
|
50Ω
|
|
Physical
parameters
|
1
|
Overall size
|
50*18mm
|
|
2
|
weight
|
69.8g
|
|
3
|
Line type
|
RG174
|
|
4
|
Line length
|
L=1m
|
|
5
|
Linear interface
|
SMA
|
Packaging and Delivery：
DALANG AK203 High-Precision GNSS Antenna
The DALANG AK203 is a dual-band multi-system GNSS antenna designed for centimeter-level accuracy, supporting full frequency bands including GPS L1/L5, BDS B1, GLONASS L1, and Galileo E1. Featuring an innovative stacked ceramic design (25×25×4/35×35×4) and integrated high-performance low-noise amplifier, it provides reliable RTK positioning solutions for drone navigation, precision agriculture, and surveying applications.
Dual-Band High-Precision Positioning Performance
With excellent gain performance of L1:5±1dBi and L5:3±1dBi, combined with 32±3dB amplifier gain and <1dB noise figure, the AK203 achieves fast centimeter-level positioning in complex environments, providing continuous and stable position tracking for mobile platforms.
Optimized for Demanding Environments
The antenna features compact dimensions of 50×18mm and weighs only 69.8g. Equipped with 1-meter RG174 cable and SMA interface, it supports multiple installation methods including magnetic adsorption and screw fixation, easily adapting to various drones and agricultural machinery.
Excellent Anti-Interference Capability
Utilizing industrial-grade low-noise RF circuitry and right-hand circular polarization design, it effectively suppresses multipath interference. With an operating temperature range of -40℃ to +85℃, it ensures stable operation in harsh environments.
Product Advantages
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Dual-Band Multi-System Precision Positioning
Comprehensive support for L1/L5 dual bands and four major satellite systems, achieving centimeter-level RTK positioning accuracy
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High Gain and Low Noise Design
32dB amplifier gain and excellent noise control ensure stable reception in weak signal environments
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Compact and Rugged Structure
Lightweight design with multiple installation options meets the strict space requirements of mobile platforms
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Industrial-Grade Environmental Adaptability
Wide operating temperature range and excellent anti-interference performance ensure long-term reliable outdoor operation
Looking for a professional-grade GNSS antenna for your drone or agricultural system? DALANG AK203 meets your precise positioning needs with dual-band high performance!
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.
