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

Septentrio PolaNt Choke Ring B3/E6


The PolaNt Choke Ring B3/E6 is a high precision geodetic multi-frequency multi-constellation choke ring antenna for use with Septentrio's PolaRx family of high performance multiple-frequency GNSS reference receivers. It supports current and planned GNSS signals including BeiDou B3 and Galileo E6.



Built of aluminum, the ChokeRing B3/E6 from Septentrio is a high precision multi-frequency antenna for reference stations. It is recognized for its durability in harsh conditions and reliability. The ChokeRing B3/E6 is enabled for multi-frequency reception (GPS, GLONASS and Galileo) and to mitigate multipath by attenuating reflected GPS signals thus significantly improving the reliability and accuracy of your reading.

The PolaNt Choke Ring antenna incorporates low-noise amplifiers, powerful filters for out-of-band interference
rejection combined with Superior multipath rejection and a high phase centre stability.

It is a competitive alternative for Dorne & Margolin based anteannas and is designed for high-end applications and reference station operations. The sealed radome allows reliable signal reception even
in difficult conditions.


  • Support for current and planned GNSS signals including GPS, GLONASS, Galileo, BeiDou, IRNSS, QZSS and SBAS
  • BeiDou B3 and Galileo E6 are supported
  • High phase center stability
  • IGS calibration available

Technical Specifications

GPS: L1, L2, L5
Galileo: E1, E5ab, E6
BeiDou: B1, B2, B3
Diameter: 376 mm
Weight: 3.98 kg
Polarization: RHCP
Axial ratio: 3 dB max
Amplifier Gain: 39 plus or minus 2 dB
Noise Figure: 2.6 dB maximum
Connector: N-Type Female
Operating Temperature: -55 °C to +85 °C


The Septentrio PolaNt Choke Ring B3/E6 antenna can be ordered through TerrisGPS. Please feel free to get in touch with us using the Request Pricing form if you would like more 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