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Harxon HX-CSX137A X-Survey GNSS OEM Antenna



The Harxon HX-CSX137A X-Survey™ GNSS OEM antenna is a multi-constellation multi-frequency embedded high precision surveying antenna. It’s a highly integrated GNSS antenna that embeds dual 4G antennas, WI-FI antenna as well as Bluetooth Antenna in an extremely mini compact enclosure. This versatile antenna could be adopted into applications as geodetic surveying, oceanic surveying, geologic surveying and geological disasters monitoring and
smart port operations.

The HX-CSX137A antenna offers full support for reliable and consistent satellite signals tracking, including GPS, GLONASS, Galileo and Beidou, as well as L-Band correction services. It also exhibits a very stable phase center by adopting multipoint feeding technology, and realizes the repeatability of phase center and geometric center and minimizes deviation, which ensuring millimeter-level positioning accuracy.

This versatile antenna adopts a compact design that combines GNSS antenna, 4G antennas, WI-FI antenna and Bluetooth antenna, delivering great compatibility to be integrated into RTK applications. The layout of this multifunction antenna is specifically designed for realizing a perfect isolation effect among the different antennas embedded and ensuring outstanding reduction of interrelated influence. The 4G antennas adopt a balancing distribution around the GNSS antenna, with a metallized circular holes fence that made by Harxon self-developed microwave material between the 4G antennas and the GNSS antenna, with the WIFI/BT antenna placing on top of them, maximiumly miniaturizing the dimension of this antenna and making it an optimal option for integration.

The HX-CSX137A antenna exhibits superior high gain performance with ultralow signal loss, ensuring reliable satellite signal tracking. It also delivers wide beam width that covers a wide frequencies with high marginal gain. These features in turn ensure the antenna a robust signal availability even in low elevation, making the antenna a perfect option in complex environments that have blockage, such as tree canopy and buildings.

The advanced LNA (Low Noise Amplifier) excels in improved signal filtering and out-of-band rejection and restraints unwanted electromagnetic interferences, plus strong multi-path reduction capacity over all GNSS frequency bands, providing strong anti-interference performance for consistent and reliable GNSS signals, even under complicated environments such as power grids, communication base stations, and broadcast stations.

The HX-CSX137A antenna is highly integrated by combining GNSS antenna and communication antenna using self-developed microwave material, with its diameter of 111mm only. The whole layout ensures optimization in power consumption, weight and dimensions while guarantees positioning accuracy, reliability and better electrical properties.


  • Comprehensive GNSS support: GPS, GLONASS, Galileo, BeiDou as well as L-Band correction service
  • Highly integrated design with GNSS antenna, dual 4G antennas, WI-FI, Bluetooth antenna embedded
  • Reliable phase center, low elevation signal tracking, and high signal gain offer millimeter positioning accuracy
  • Superior out-of-band rejection and filtering, excellent multi-path reduction capacity
  • Great electromagnetic compatibility, easy for integration

Technical Specifications

GPS: L1, L2, L5
Galileo: E1, E5a, E5b, E6
BeiDou: B1, B2, B3
QZSS: L1/L2/L5
L-Band: Yes
WiFi: 2.4G/5.8G
Nominal Impedance: 50Ω
Polarization: RHCP
Axial Ratio: ≤3dB
Azimuth Coverage: 360° (omni-directional)
Output VSWR: ≤2.0
GNSS Gain: 1164MHz-1300MHz 4.0dBi
1525MHz-1612MHz 4.5dBi
BT/WiFi Gain: 2.4-2.5GHz 0.5dBi
Dual 4G Gain: 790-960MHz 0.5dBi
1710-2690MHz 0.5dBi
Phase Center Deviation: ±2mm
Low Noise Amplifier
LNA Gain: L2: 40±2dB
L1: 38±2dB
Noise Figure: ≤2dB
Output VSWR: ≤2.0
Operation Voltage: +3.3 to + 12VDC
Passband Ripple: ±2dB
Operation Voltage: +3.3 to +12VDC
Operation Current: ≤45mA
Group Delay Ripple: ≤5ns
Dimensions: Φ111×23.8mm
Weight: ≤150g
Connector: MCX-C-JW1.5 (GNSS)
MCX-C-JW1.5 (BT/WiFi)
MCX-C-JW1.5 (Dual 4G)
Mounting: 4x M3.0 screws fixed installation
Operating Temperature: -40 °C to +85 °C
Storage Temperature: -55 °C to +85 °C
Humidity: 95% non-condensing


The HX-CSX137A X-Survey GNSS OEM 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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