Email Us: [javascript protected email address] Toll Free: 1-866-642-1880

Harxon HX-CH7603A GNSS UAV/Helix Antenna


GPS L1/L2 + GLONASS L1/L2 + BeiDou B1/B2/B3 with 33dB Gain



The Harxon HX-CH7603A GNSS UAV/helix antenna utilizes Harxon’s D-QHA technology which significantly enhances the low-elevation angle tracking capabilities. Wide-angle circular polarization (WACP) and small antenna phase center deviation (PCV) help to ensure stable performance and accurate positioning even in the most challenging environments.

The ability to track low elevation satellites while maintaining high gain makes the HX-CH7603A antenna an excellent choice for any application where the sky is partially visible.

The antenna LNA features excellent out-of-band rejection performance, which can suppress electromagnetic interference, providing the stability and reliability of GNSS signals.

The HX-CH7603A UAV/Helix antenna is the toughest precision antenna Harxon has designed to date. It features the latest low-wind resistance design and ultra-durable watertight enclosures. Its IP67 rated ruggedized design means it is protected from dust and water.


  • Supports GPS, GLONASS, Beidou signal reception
  • D-QHA technology ensures exceptional low elevation satellite tracking
  • Stable phase center guarantees accuracy of positioning within millimeter-level
  • Anti-interference capability to endure the harshest operating environments

Technical Specifications

GPS: L1, L2
BeiDou: B1, B2, B3
Gain at Zenith (90°): 1205-1278 MHz 4.2dBi (maximum)
1559-1610 MHz 3.8dBi (maximum)
Nominal Impedance: 50Ω
Polarization: RHCP
Axial Ratio: ≤3dB
LNA Gain: 33dB (typical)
Noise Figure: ≤1.5dB
Output/Input VSWR ≤2.0
Operation Voltage: +3.3 to + 12VDC
Operation Current: 55mA (maximum)
Phase Center Deviation (PCV): ±3mm
Group Delay Ripple: <15ns
Dimensions: ¢40 x 75.2 mm
Connector: SMA male
Weight: ≤ 28 g
Mounting: 3*3/32 inch -48*DP6mm (UNC)
Operating Temperature: -40 °C to +70 °C
Storage Temperature: -40 °C to +70 °C
Humidity: 95% non-condensing
Water/Dust Resistance: IP67


The HX-CH7603A GNSS UAV/helix antenna from Harxon is available through TerrisGPS. Please use the Request Pricing form to contact us for further information.

Testimonial Icon

Client Testimonials

This page is having a slideshow that uses Javascript. Your browser either doesn't support Javascript or you have it turned off. To see this page as it is meant to appear please use a Javascript enabled browser.

"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

Testimonial Icon

Copyright , TERRISGPS, All rights reserved, Privacy Policy, Terms