Gnss Active Antenna Gl-Dy218d with 40dBi Gain

Product Description

Product Description

GL218D High Precision Antenna--High Accuracy Applications
The GL218D is a high-performance GNSS active antenna designed for reliable positioning across multiple satellite systems, including GPS, GLONASS, BeiDou, and Galileo. It features a wide frequency range from 1559.052 to 1602 MHz and 1164 to 1259 MHz, with stable RHCP polarization and a low axial ratio of ≤3 dB. The integrated LNA provides a gain of 40±2 dB (B1/L1/G1/E1/E2) and 42±2 dB (B2/L2/G2/L5/E5a/E5b), ensuring excellent signal reception even in challenging environments. With an operating temperature range of -40°C to +70°C and IP67 ingress protection, the GL218D is built for durability in outdoor and industrial applications. Its compact design (Φ96 mm) and flexible mounting options make it suitable for surveying, navigation, and telemetry systems.

Specification

Item		Specifications
Antenna	Frequency Range	1559.052~1602MHz 1164~1259MHz
	Polarization	RHCP
	Axial Ratio	≤3dB
	V.S.W.R	≤2.0
	PeakGain	≥3dBi
	Impedance	50 Ω
	Horizontal Coverage Angle	360°
	Vertical Coverage Angle	5°~90°
LNA	Gain	B1/L1/G1/E1/E2:40±2dB B2/L2/G2/L5/E5a/E5b:42±2dB
	Noise Figure	≤1.5dB
	Supply Voltage	3.3~12VDC
	Current Consumption	≤60mA
	V.S.W.R	≤2.0
Mechanical	Cable	RG58 or others
	Connector	BNC or others
	Dimension	Φ96mm
	Mounting Method	Screw
	Radome Material	ABS
Environmental	Operating Temperature	-40℃~+70℃
	Storage temperature	-40℃~+70℃
	Relative Humidity	Upto95%(Noncondensing)
	Ingress Protection	IP67

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.