Full-Band Helix Antenna with 4.2 dBi Peak Gain

UAV Antenna HX-CH7603A

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Introduction

The Harxon HX-CH7603A is a lightweight, multi-frequency GNSS helix antenna for high-precision surveying, mapping, and UAV applications. It supports GPS, GLONASS, Galileo, BeiDou, QZSS, IRNSS, and SBAS signals, as well as L-band correction services. Harxon’s patented D-QHA technology provides stable wide-angle circular polarization and minimal phase center variation, with peak antenna gain of up to 4.2 dBi for reliable satellite reception. Its low-noise amplifier suppresses out-of-band interference from nearby LTE and Wi-Fi/Bluetooth systems. Measuring Φ40 × 75.2 mm and weighing no more than 38 g, it combines a low-wind-resistance design with an SMA male connector for GIS surveying, plant protection, and UAV power-line inspection.

  • full-band-multi-constellation-gnss-antenna

    Full-Band Multi-Constellation GNSS Support

  • integrated-dual-communication-antennas-2g-3g-4g-wi-fi

    High Peak Gain of up to 4.2 dBi

  • integrated-dual-communication-antennas-2g-3g-4g-wi-fi

    SMA Male Connector for Easy Integration

  • integrated-dual-communication-antennas-2g-3g-4g-wi-fi

    Strong Interference Rejection with Pre-Filtered LNA

Key Features

  • Advanced D-QHA Technology

    Harxon’s patented D-QHA technology enhances low-elevation satellite tracking through stable wide-angle circular polarization and minimal phase center variation. This design supports consistent GNSS reception and helps meet the accuracy requirements of surveying, mapping, and UAV positioning systems.

  • Tracking in Challenging Environments

    The HX-CH7603A maintains high gain at low elevation angles, supporting reception from visible satellites where the sky is partially obstructed. This capability makes it well suited for GIS surveying, plant protection, and UAV power-line inspection near tree lines or beneath tree canopies.

  • Strong Anti-interference Performance

    The integrated low-noise amplifier suppresses out-of-band interference, including signals from LTE and Wi-Fi/Bluetooth equipment. Its filtering helps maintain stable GNSS reception for surveying and UAV operations in environments with communication equipment and electric power infrastructure.

  • Toughest Precision Antenna

    The HX-CH7603A combines a low-wind-resistance design with a durable enclosure rated IP67 outside the bottom sealing ring. Weighing no more than 38 g, it features an SMA male connector for easy integration into UAVs and surveying equipment used in demanding outdoor environments.

Parameters

HX-CH7603A
Signal Received GPS L1/L2/L5/L-Band
GLONASS L1/L2/L3
GALILEO E1/E5a/E5b/E6
BDS B1/B2/B3
QZSS L1/L2/L5/L6
SBAS L1/L5
Nominal Impedance 50Ω
Polarization RHCP
Axial Ratio ≤3dB
Gain RHCP(maximum) 1205-1278MHz 4.2dBi(maximum)
1559-1610MHz 3.8dBi(maximum)
LNA Gain 33dB(typical)
Noise Figure ≤1.5dB
Output VSWR ≤2.0
Operation Voltage +3.3 to +12VDC
Operation Current 55mA(maximum)
Group Delay Ripple <15n
Dimensions ¢40*75.2mm
Connector SMA male
Weight ≤38g
Mounting 3*3/32"-48*DP6mm (UNC)
Operating Temperature -40℃ to +70℃
Storage Temperature -55℃ to +70℃
Humidity 95% non-condensing
Water/Dust Resistance IP65
Regulatory Compliance CE, RoHS

 

Applications

surveying-and-mapping-drone

Surveying and Mapping Drone

power-line-inspection-drone

Power Line Inspection Drone

fixed-wing-drone

Fixed Wing Drone

light-show-drone

Light Show Drone

delivery-drone

Delivery Drone

agricultural-spraying-drone

Agricultural Spraying Drone

Inquiry

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You may also contact us through email sales@harxon.com or WeChat/WhatsApp: +86-189 0245 0568

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