The PolaNt Choke Ring B3/E6 is a premium-grade, high-precision geodetic choke ring antenna designed for demanding GNSS reference station and scientific applications. Manufactured with advanced engineering, this antenna supports all current and planned GNSS constellations, including GPS, GLONASS, Galileo, BeiDou, IRNSS, QZSS, and SBAS, ensuring long-term compatibility and reliability for mission-critical operations.

Engineered for multi-frequency performance, the antenna covers GPS L1, L2, L5; GLONASS L1, L2, L3; Galileo E1, E5a, E5b, E6; BeiDou B1, B2, B3; SBAS L1, L5; IRNSS L5; and QZSS L1, L2, L5, L6. Its BeiDou B3 and Galileo E6 capabilities make it future-ready for evolving GNSS infrastructures.

The PolaNt Choke Ring B3/E6 is equipped with low-noise amplifiers and powerful out-of-band interference filters, delivering superior multipath rejection and high phase center stability. This ensures centimeter-level accuracy and consistent performance even in challenging environments. With an axial ratio of ≤3 dB and radiation coverage optimized from zenith to horizon, it guarantees reliable signal reception across a wide range of elevation angles.

Built for scientific reference networks, geodetic surveys, and high-end infrastructure monitoring, this antenna is a competitive alternative to traditional Dorne & Margolin-based designs. Its sealed radome provides robust protection against harsh weather conditions, ensuring uninterrupted operation in extreme climates.

Key technical highlights include:

• Amplifier Gain: 39 ± 2 dB with a low noise figure of ≤2.6 dB
• Input Voltage: +4.2 to +15 VDC, with typical current consumption of 65 mA
• Power Handling: Up to 1 W, with 50 Ω impedance and VSWR ≤ 2.0:1
• Connector: N-Type Female for secure and stable connectivity
• Durability: Designed to DO-160D standards, CE, RoHS, and WEEE certified

Physical specifications:

• Weight: 5 kg (11.02 lb)
• Diameter: 376 mm (14.8 in)
• Operating Temperature: -55°C to +85°C (-67°F to +185°F)
• Finish: White UV-resistant polyurethane enamel for long-lasting outdoor use

The PolaNt Choke Ring B3/E6 is also IGS reference calibrated (SEPCHOKE_B3E6), making it suitable for integration into global scientific and geodetic networks. Its rugged design, precision performance, and wide compatibility make it the ideal choice for surveying companies, research institutions, and GNSS infrastructure providers seeking long-term reliability and accuracy.