TW3929E

Overview

The TW3929E is a low‑current, high‑precision GNSS antenna featuring Calian’s advanced Accutenna® technology. Engineered for robust performance across challenging environments, it delivers exceptional reception for GPS/QZSS (L1, L2, L5), GLONASS (G1, G2, G3), Galileo (E1, E5a, E5b), BeiDou (B1, B2), SBAS (WAAS/EGNOS/GAGAN/MSAS), as well as L‑band correction services.

Designed for Precision‑Critical Applications

Optimized for industries where accuracy is essential—including precision agriculture, autonomous vehicle guidance, and high‑performance positioning systems—the TW3929E ensures:

• Excellent multipath signal rejection
• Highly stable, linear phase response
• Low axial ratios
• Tight and consistent Phase Centre Variation (PCV)

Advanced Signal Architecture

At the core of the TW3929E is a precision‑tuned, stacked patch element with twin circular dual‑feed technology. Signals from the orthogonal feeds are merged through a hybrid combiner, amplified via a wide‑band LNA, then split into dedicated bands for narrow filtering. Each band is subsequently amplified again before being recombined at the output, ensuring superior signal clarity and stability.

To further enhance performance in noisy RF environments, the antenna integrates an LNA pre‑filter. This provides strong rejection of high‑level sub‑harmonic signals such as LTE and nearby‑frequency interference including Wi‑Fi.

Custom OEM Tuning

Calian offers custom tuning services to achieve optimal performance for specific OEM installation environments.

Durable, Installation‑Ready Housing

The TW3929E is enclosed in a weather‑resistant, through‑hole mount enclosure designed for long‑term outdoor installations. Optional accessories include an L‑Bracket and Pipe Mount for non‑rooftop use. A 100 mm ground plane is included and recommended to ensure maximum performance in all deployment scenarios.