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Stonex SA1000 Mini Choke Ring GNSS Antenna


The Stonex SA1000 mini choke ring GNSS antenna is a high performance antenna with strong multipath suppression and submillimeter phase center stability that is ideal for use in monitoring applications or CORS for the creation of a Network VRS.



The Stonex SA1000 is a high performance mini choke ring GNSS antenna with strong multipath suppression and submillimeter phase center stability. This antenna is ideal for use in installations for monitoring or CORS for the creation of a Network VRS. This antenna delivers excellent performance in a small package. It has a diameter of only 213 mm and a low weight of 3 kg. This allows easy installation compared to standard choke ring antennas which are bigger and heavier.

The SA1000 mini 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 SA1000 an excellent choice for tracking visible satellites and provides stable and precise GNSS data in complex environments, such as tree lines or construction sites.

The SA1000 antenna radome 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. The SA1000 is the perfect compromise of size and performance at a very competitive price.


  • Submillimeter phase center stability
  • Tracks 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, L6
SBAS: L1, L5
L-Band: Yes
Phase Center Stability: +- 1mm
Nominal Impedance: 50Ω
Polarization: RHCP
Axial Ratio: ≤2dB
Peak Gain: 5.5dB
LNA Gain: 40db (typical)
Noise Figure: ≤1.5dB
Output/Input VSWR: ≤2.0
Operation Voltage: +3.3VDC to +12VDC
Operating Current: 50mA (maximum)
Group Delay Ripple: ≤5ns
Dimensions: ɸ213mm x 155mm
Connector: TNC Female
Mounting: BSW 5/8 inch – 11 screw, depth ≥22mm
Weight: 3.0 kg
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 SA1000 mini 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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"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
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F.A. - Survey Industry

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