Mini High-Gain Rhcp SMA-J Multi-Gnss High-Precision Antenna

• Customization: Available
• Directionality: Directional Antenna
• Frequency Band: GPS: L1,L5 Gnss:G1 Bds: B1 Galileo: E1
• Model NO.: GL-811M
• Material: ABS
• Sturcture Form: Surface Antenna
• VSWR: <1.5
• Fob Port: Guangzhou
• MOQ: 100
• Payment: Tt, Paypal
• Attribute: Reliable High-Precision Antenna
• Transport Package: Carton
• Specification: 53*29*24cm
• Trademark: LEHENG
• Origin: China
• HS Code: 8517710000
• Production Capacity: 10000PCS/Day
• Package Size: 27.00cm * 20.00cm * 10.00cm
• Package Gross Weight: 1.000kg
• Lead Time: 14 days (1 - 100 Pieces) ; To be negotiated ( > 100 Pieces)

Product Description

Product Description

GL-811M High Precision Antenna--High Accuracy Applications
The GL-811M is a compact and versatile multi-GNSS antenna designed for reliable positioning across core frequencies of GPS (L1, L5), GLONASS (G1), BDS (B1), and Galileo (E1). With a gain of ≥2dBi, integrated LNA gain of 34±2dB, and excellent signal purity (axial ratio ≤3dB), it ensures stable reception in various environments. Its small cylindrical form factor (20.4×44 mm, ≤16g) and SMA-J connector make it easy to integrate into space-conscious applications such as portable devices, drones, and vehicle telematics. Built to operate reliably from -40℃ to +80℃, it is a robust solution for mobile and outdoor use where consistent multi-system performance is required

Specification

Frequency Range(MHz)	GPS:L1,L5 GNSS:G1 BDS:B1 Galileo:E1
operating Voltage	3.0~12V DC
Polarization	RHCP
Operating Current	≤35mA
Gain(dBi)	≥2dBi
Operating Temperature	-40℃~+80℃
Axial Ratio	≤3dB
Storage Temperature	-45℃~+85℃
Horizontal Coverage	360°
Humidity	95%
LNA Gain	34±2dB
VSWR	≤2.0
Connector	SMA-J
Dimensions-mm	20.4X44
Weight	≤16g

Functional Advantages

Comprehensive Multi-System Support

Compatible with all major global navigation satellite systems (BDS, GPS, GLONASS, and Galileo) across multiple frequency bands. 

Superior Signal Quality for High-Accuracy Applications

With an integrated Low-Noise Amplifier (LNA) offering high gain and a low noise figure (≤2.0), the antenna significantly improves signal reception and sensitivity.  

Robust Design with Low Power Consumption

Engineered for durability, the antenna operates reliably in extreme temperatures (-40℃ to +85℃) and high humidity (95% non-condensing). 

Core Applications

Surveying & Mapping
Ideal for high-accuracy geodetic surveying, cadastral mapping, and construction layout, where its stable phase center and multi-GNSS support enable centimeter-level positioning reliability.

Precision Agriculture
Enables automated guidance for farm machinery and supports variable-rate application systems, improving efficiency and crop yield through accurate, real-time positioning.

Unmanned Aerial Vehicles (UAVs)
Provides dependable navigation and positioning for drones used in aerial mapping, inspection, delivery, and agricultural monitoring, even in dynamic flight conditions.

Autonomous & Connected Vehicles
Supports automotive testing, ADAS development, and fleet management systems by delivering robust and continuous positioning data essential for navigation and telematics.

Critical Infrastructure & Timing
Suitable for synchronization in telecommunications networks, power grids, and scientific monitoring stations where precise timing and reliable GNSS signals are crucial.

FAQ

 
Q1: What level of positioning accuracy can this antenna support?

A: This antenna is designed to support centimeter to millimeter-level accuracy when used with a compatible GNSS receiver in RTK (Real-Time Kinematic) or PPK (Post-Processed Kinematic) modes.     Its stable phase center (±5mm) and low axial ratio ensure reliable signal quality for high-precision applications.
 
Q2: Is the antenna compatible with my existing GNSS receiver?

A: Yes, it supports all major GNSS systems (GPS, GLONASS, Galileo, BDS) across multiple frequencies.     It uses a standard SMA connector and operates on 3–12V DC, making it compatible with most industrial and surveying-grade receivers.
 
Q3: Can it be used in harsh environmental conditions?

A: Absolutely.  The antenna is built to operate in temperatures from -40℃ to +85℃ and withstand up to 95% non-condensing humidity, making it suitable for outdoor, marine, and industrial environments.

Q4: How should the antenna be mounted for optimal performance?

A: For best results, mount the antenna on a stable, metallic ground plane with a clear view of the sky.     Ensure the polarization (RHCP) is oriented upward, and avoid obstructions near the antenna's horizon.

Q5: Is the antenna suitable for moving platforms like drones or vehicles?

A: Yes.  Its lightweight design (≤150g), low power consumption, and robust performance across dynamics make it ideal for UAVs, autonomous vehicles, agricultural machinery, and marine navigation systems.