High Precision 40dbi Multi-GNSS Antenna with Built-in LNA

Product Introduction

1. High-Precision Positioning Across the Entire System: Fully supports four major global satellite navigation systems: BeiDou (B1/B2/B3), GPS (L1/L2/L5), GLONASS (G1/G2), and Galileo (E1/E5a/E5b). It achieves multi-frequency, multi-system joint calculations, significantly improving positioning accuracy, speed, and reliability, especially excelling in complex urban or obstructed environments.

2. Extremely Stable Phase Center: Phase center stability reaches ±2mm, crucial for achieving centimeter-level or even millimeter-level high-precision positioning (such as RTK). Its excellent stability and repeatability ensure accurate and reliable measurement data, making it ideal for professional surveying and precision agriculture.

3. High-Performance Built-in Low-Noise Amplifier: Integrates a high-quality LNA with a gain of 40±2dB and a noise figure ≤2.0dB. It effectively amplifies weak satellite signals while suppressing system noise, significantly improving the signal-to-noise ratio and ensuring stable satellite tracking even under weak signal conditions.

4. Excellent Electrical and Environmental Adaptability: Utilizing right-hand circular polarization (RHCP) with an axial ratio ≤3dB, it offers superior satellite signal reception and multipath interference suppression. It operates over a wide voltage range (3-12V DC), consumes little power (≤50mA), and can function stably in harsh temperature and high humidity environments from -40℃ to +80℃.

5. Rugged and Lightweight Design: Weighing ≤130g, its robust structure and standard MMCX interface facilitate integration into drones, mobile surveying equipment, and various field operation terminals, ensuring both performance and portability.

Application Scenarios

Drone Surveying and Inspection

Precision Agriculture and Autonomous Driving

Land Surveying and Engineering Surveying

Intelligent Transportation and Vehicle Navigation

Marine Surveying and Geological Monitoring

FAQ

Q: Does this antenna support single-frequency positioning?

A: Yes, but its main design advantage lies in supporting multi-frequency signals from four major systems. Using multiple frequencies can eliminate ionospheric errors and is fundamental for achieving high-precision positioning (such as RTK). Single-frequency use also offers excellent performance.

Q: Does the built-in LNA require external power?

A: Yes. The antenna receives a 3.0-12V DC voltage via the MMCX connector core wire to power the built-in LNA. Please ensure your GNSS receiver or data acquisition unit can provide power to the antenna.

Q: What does "phase center stability ±2mm" mean for users?

A: This means that the physical position of the antenna's electrical center point is very stable. For high-precision applications, even small phase center variations can introduce centimeter-level errors. This specification ensures consistent measurement references and more accurate data when the antenna receives signals at different angles.

Q: Can it be used on drones?

A: Ideally. Its lightweight design (≤130g), wide voltage supply, and excellent performance make it ideal for high-precision positioning applications on drones, effectively improving the accuracy and reliability of drone positioning.

Q: Is the antenna waterproof?

A: The specifications mention "95% Non-condensing Humidity" operating environment. This indicates it can withstand high humidity environments, but a specific waterproof rating (e.g., IP67) is usually not specified. It is recommended to install it inside a device enclosure or take appropriate waterproof protection measures.

Q: Are special cables or adapters required when connecting to the receiver?

A: The antenna comes standard with an MMCX connector. You will need an adapter cable or connector with the appropriate interface depending on the receiver's interface type (usually SMA or TNC).