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Harxon HX-CU7603A GNSS Helix Antenna


GPS L1/L2/L5 + GLONASS L1/L2 + Galileo E1/E5a/E5b + BeiDou B1/B2/B3 + QZSS L1/L2/L5/L6 + IRNSS L5 + SBAS L1/L5 + L-band with 33 dB Gain



The Harxon HX-CU7603A is a high performance GNSS helix antenna designed for precision positioning. Its RTK level positioning accuracy makes it ideal for many UAV applications such as surveying, mapping, aerial photography, remote sensing, infrastructure inspection, traffic control and public security.

The HX-CU7603A helix antenna adopts patented D-QHA technology for stable performance of wide-angle circular polarization (WACP), which ensures exceptional low elevation satellite tracking while maintaining high gain and providing reliable signal tracking. This consistent performance makes it an ideal option for UAVs even under challenging environments.

The HX-CU7603A GNSS antenna features a multi-point feeding technology that ensures a high phase center stability with centimeter-level accuracy.

Weighing only 20 g, the lightweight HX-CU7603A helix antenna is a compact and low power antenna which will allow for longer UAV flight times. The antenna is built into a rugged IP65 waterproof housing to withstand exposure against dust/water and includes a rugged SMA connector for easy installation.


  • Comprehensive GNSS support: GPS, GLONASS, Galileo, BeiDou, as well as L-Band correction service
  • Patented D-QHA technology ensures reliable signal tracking
  • Centimeter phase center repeatability
  • Improved signal filtering and excellent multipath rejection
  • Low power consumption, lightweight, small form factor for easy integration
  • Rugged housing (IP65), SMA connector

Technical Specifications

GPS: L1/L2/L5
Galileo: E1/E5a/E5b
BeiDou: B1/B2/B3
QZSS: L1/L2/L5/L6
L-Band: Yes
Nominal Impedance: 50Ω
Polarization: RHCP
Axial Ratio: ≤3dB
LNA Gain: 33±2dB
Noise Figure: ≤2dB
Output VSWR ≤2.0
Operation Voltage: +3.3V to +12V DC
Operation Current: ≤55mA
Dimensions: ¢32.2*45.8mm
Connector: SMA male
Weight: ≤ 20 g
Operating Temperature: -40 °C to +70 °C
Storage Temperature: -55 °C to +70 °C
Humidity: 95% non-condensing
Water/Dust Resistance: IP65


The HX-CU7603A GNSS Helix Antenna from Harxon is available through TerrisGPS. Please use the Request Pricing form to contact us for further information.

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Client Testimonials

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"Thank you for your prompt service. All seems to be working well again. Your techs were very helpful with the troubleshooting."
J.O. - Ground Navigation
"Thanks for all the troubleshooting help, also to John for his assistance and the prompt answers from you guys!"
F.A. - Survey Industry

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