High Precision Gnss Surveying+LTE MIMO Combination Antenna Hot Sales

• Customization: Available
• Type: GPS Antenna
• Certification: ISO14001, RoHS
• Model NO.: GL228M
• Warranty: 1 Year
• Usage Occasion: Car Antenna
• Operating Wavelength: Microwave
• Vswr: <1.5
• Nature of Operation: Receiving Antenna
• Sturcture Form: Wire Antenna
• Material: ABS
• Directionality: Rhcp
• PCS/CTN: 200
• Weight/CTN: 12.5
• Connector: Fakra C Blue or SMA Male
• Cable Length: 2m
• Usage: Communication Antenna
• Base Antenna: High Gain Antenna
• Dimensionality: One-Dimensional Antenna
• Transport Package: 48*30*28cm
• Specification: 40*30*15.1mm
• Trademark: LEHENG
• Origin: China
• HS Code: 8529109090
• Production Capacity: 3000PCS/Day
• Package Size: 20.00cm * 15.00cm * 5.00cm
• Package Gross Weight: 1.000kg

Product Description

Product Description

GL228LM  High Precision Antenna--High Accuracy Applications
The GL228LM is a versatile combination antenna integrating high-precision GNSS surveying and LTE MIMO capabilities into a single compact unit. It supports multi-constellation GNSS signals (GPS L1/L2, GLONASS G1/G2, BeiDou B1/B2/B3, Galileo E1/E2/E5b/E6) with a phase center error of ±2 mm, making it ideal for RTK and precision surveying. The LTE MIMO antenna covers 698–960 MHz and 1710–2690 MHz, providing reliable 4G connectivity for data transmission. With a gain of 40±2 dB, low noise figure (≤1.5 dB), and robust IP67 protection, the GL228LM is suited for UAVs, mapping systems, and mobile field solutions requiring both accurate positioning and stable communication.

Specification

Frequency Range(MHz)	BDS:B1,B2,B3 GPS:L1,L2,L5 GNONASS:G1,G2 Galileo:E1,E5a,E5b
Peak Gain	≥4.0 dBi
Polarization	RHCP
VSWR	≤2.0
Axial Ratio	≤3dB
Impedance	50Ω
LNA Gain	34±2dB
Horizontal Coverage Angle	360°
In-band Flatness	±2dB
Noise figure	≤2.0
Phase center	±5mm
Operating voltage	3.0~12V DC
working current	≤45mA
Connector	SMA-K
Humidity	95% Non-condensing
Storage temperature	55℃ to+85℃
Operating temperature	-40℃ to+85℃
Weight	≤150g

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.