High-precision Vehicle Antenna

Introduction
Key Features
Parameters
Applications
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Introduction

HX-VR401A is a high-precision, full-band GNSS vehicle antenna designed for reliable positioning in demanding environments. Supporting GPS, BDS, GLONASS, Galileo, QZSS, IRNSS, SBAS, and L-Band, it features high phase center stability, excellent multipath rejection, and a pre-filtered LNA for stable GNSS signal tracking and precise positioning. Its compact IP67-rated housing and flexible screw or magnetic mounting options enable reliable and convenient installation across a wide range of vehicle applications. The HX-VR401A is ideal for unmanned vehicles, autonomous driving, drones, precision agriculture, and other high-precision GNSS applications.

Stable High-Precision Positioning for Vehicle Applications
Full-Band Multi-Constellation GNSS Support
Compact Φ69 mm Housing with IP69K Protection
Flexible Screw & Adhesive Mounting Options

Key Features

High Phase Center Stability

HX-VR401A uses a multi-point feeding design to enhance phase center stability, effectively improving measurement accuracy and providing reliable high-precision GNSS positioning performance for demanding applications that require precise and consistent positioning results.
Strong Anti-Interference Capacity

A robust pre-filtered LNA provides excellent out-of-band interference rejection, suppressing unwanted electromagnetic interference and ensuring stable GNSS signal tracking from all elevation angles for reliable positioning performance even under challenging operating conditions.
Compact Form Factor and Ruggedized Housing

HX-VR401A supports both screw and magnetic mounting options, providing greater installation flexibility for different vehicle configurations and enabling convenient, secure, and reliable deployment across a wide range of vehicle-mounted GNSS applications and demanding operating environments.
Tracking in Challenging Environments

High gain, wide beam width, and low-elevation signal reception enable reliable tracking of visible satellites under challenging conditions, providing precise positioning and reliable GNSS data in obstructed environments such as tree lines, construction areas, and other demanding applications.

Parameters

Performance
LNA
Mechaical
Environmental
Drawing

Signal Received	GPS L1/L2/L5 GLONASS L1/L2/L3 GALILEO E1/E5a/E5b/E6 BDS B1I/B2I/B3I/B1C/B2a/B2b QZSS L1/L2/L5/L6 IRNSS L5 SBAS L1/L5 L-Band
Nominal Impedance	50Ω
Polarization	RHCP
Azimuth Coverage	360°
VSWR	≤2.0
Axial Ratio	≤3dB
Peak Gain	4.0dBi

LNA Gain	37±2dB
Noise Figure	≤2dB
Passband Ripple	±2dB
Output VSWR	≤2.0
Operation Voltage	+3.3 to +12VDC
Operation Current	≤45mA

Dimensions	Φ69×24.9mm
Connector	SMA-K
Weight	≤260g
Mounting	Screws Mount (4* 6-32 UNC screws with depth 5mm); Magnetic Mount

Operating Temperature	-40℃ to +85℃
Storage Temperature	-55℃ to +85℃
Humidity	95% Non-condensing
Vibration	MIL-STD-810D Method 514.3-1
Shocking	MIL-STD-810G Method 516.6
EMC (RF Input Static)	Connected: 8KV, Air: 15KV, 10 times
Protection Rating	IP67