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Stonex SA1200 3D Choke Ring GNSS Antenna


The SA1200 3D choke ring GNSS antenna from Stonex is a high performance antenna with strong multipath suppression and submillimeter phase center stability that is ideal for applications such as CORS stations, bridge/building deformation monitoring and geological monitoring.



The Stonex SA1200 is a high performance 3D choke ring GNSS antenna with strong multipath suppression and submillimeter phase center stability. It is ideal for applications like CORS stations, bridge and building deformation monitoring, geological monitoring and for the creation of a Network VRS.

The SA1200 choke ring antenna is able to track all signals (L1, L2, L3/L5) of all available constellations: GPS, GLONASS, Galileo, BeiDou, QZSS, IRNSS, SBAS and the L-band correction service. The ability to receive low elevation signals with high gain and wide beam width makes the SA1200 an excellent choice for tracking visible satellites and providing stable and precision GNSS data under complex environments like tree lines or construction sites.

The SA1200 antenna cover is made of glass fiber reinforced polymer(GFRP) material and is strong and reliable. The IP67 ruggedized cover is also designed to protect the inside antenna from dust and water. It can be used in extreme conditions and guarantees operation at temperatures from -40°C to 85°C (-40°F to 185°F).


  • Submillimeter phase center stability
  • Tracking of all GNSS signals
  • Strong and rugged

Technical Specifications

GPS: L1, L2, L5
BeiDou: B1, B2, B3
Galileo: E1, E2, E5a, E5b, E6
QZSS: L1, L2, L5
SBAS: L1, L5
L-Band: Yes
Phase Center Stability: +- 1mm
Nominal Impedance: 50Ω
Polarization: RHCP
Axial Ratio: ≤2dB
Peak Gain: 6dB
LNA Gain: 50db (typical)
Noise Figure: ≤1.5dB
Output/Input VSWR: ≤2.0
Operation Voltage: +3.3VDC to +12VDC
Operating Current: 60mA (maximum)
Group Delay Ripple: ≤5ns
Dimensions: ɸ322mm x 260mm
Connector: TNC Female
Mounting: BSW 5/8 inch – 11 screw, depth ≥22mm
Weight: 5.5kg
Operating Temperature: -40°C – +85°C (-40°F – +185°F)
Storage Temperature: -55°C – +85°C (-67°F – +185°F)
Humidity: 95% non-condensing
Waterproof/Dustproof: IP67
NGS: Yes
IGS: Yes


The SA1200 3D choke ring GNSS antenna from Stonex is available through TerrisGPS. If you would like more information regarding this product, feel free to get in touch with us by completing the Request Pricing form.

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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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