3D Choke Ring RTK GPS/GNSS Antenna_GNSS Antenna_Accessories_Product

3D Cors Station Antenna

3D Choke Ring RTK GPS/GNSS Antenna

Model Number：ACORSR44QQ-RB

Brand Name：VLG/Neutral/OEM

Frequency Range (MHz)：
1559MHz~1605MHz ，1160MHz~1300MHz

Polarization：Right-hand circular polarization

LNA Gain (dB)：42±2

V.S.W.R：＜2.0

Noise Figure (dB)：＜2.0

DC Voltage (V)：3.3~18

Current (mA) ＜50

Connector Type ：TNC-K

Dimensions (mm)：Φ380×304.2

Application:reference station, base station, deformation monitoring, earthquake perdition.

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Overview

This 3D Choke Ring RTK GPS/GNSS Antenna is a high-precision, full-band antenna designed for use in GNSS measurement systems. It covers a wide range of frequencies, including GPS L1/L2/L5, Beidou II B1/B2/B3, GLONASS L1/L2, and Galileo E1/E2/E5a/E5b/E6. The antenna features an advanced 3D choke design with an anti-multipath choke plate, making it suitable for CORS (Continuously Operating Reference Stations) networking. It is waterproof, anti-UV, and offers a stable phase center, high positioning accuracy, and the ability to receive low-elevation signals.

Key Features

• Full-band

GPS L1/L2/L5、BDS B1/ B2/ B3、GLONASS L1/L2、Galileo E1/E5a/E5b/E6

• Strong anti-interference performance

The pre-filtering scheme is adopted to effectively suppress out-of-band interference

• RTK positioning accuracy

Multi-feed point design and symmetrical antenna structure are adopted to realize the coincidence of phase center and geometric center, and reduce the influence of antenna on measurement error.

• Good reliability

Lightning and waterproof design

Specification

Electrical performance index:
Frequency Range (MHz)	1559MHz~1605MHz 1160MHz~1300MHz
Polarization	Right-hand circular polarization
Gain (dBi)	Elevation 90°≥7 Elevation 20°≥0 Elevation 10°≥-3
Axial Ratio (dB)	Elevation Angle 90°≤2 Elevation 15°≤5
Front to Back Power (dB)	±60°≥25
Phase Center Error (mm)	＜1
LNA Gain (dB)	42±2
V.S.W.R	＜2
Noise Figure (dB)	＜2.0
DC Voltage (V)	3.3~18
Current (mA)	＜50
Impedance (Ω)	50
Mechanical Specifications
Connector Type	TNC-K
Dimensions (mm)	Φ380×304.2
Relative Humidity	90%
Operating Temperature (℃)	-45～+85
Weight (kg)	9.5
Storage Temperature (℃)	-55～+85
Operation Environment	Outdoor