Tallysman’s TW3972 Triple-Band GNSS Antenna receives European Rail Certification

Worldwide, precise GNSS positioning is being adopted as a key method for train control services. Tallysman®’s TW3972 has been designed to meet the demanding needs of the railroad industry. It features a patented Tallysman® Accutenna® technology, multi-constellation and multi-frequency antenna element (supporting GPS/QZSS-L1/L2/L5, GLONASS-G1/G2/G3, Galileo-E1/E5a/E5b, BeiDou-B1/B2/B2a, and NavIC-L5 signals, as well as L-band correction services). Accutenna® technology provides an excellent axial ratio that mitigates multipath signals and produces clean code and phase measurements. Clean phase and code observations enable high-precision applications, such as Real-Time Kinematic (RTK) and Precise Point Positioning (PPP), which provide accurate and precise position estimates (< 0.1 m) . Another key feature of the TW3972 antenna is a deep pre-filter that minimizes out-of-band noise and maximizes in-band reception. This feature enables reliable GNSS signal reception in challenging urban environments, where inter-modulated signal interference from LTE and other cellular bands is common.

The TW3972 antenna has added European Railway Certification to its impressive list of certifications. The European tests include: EN 50155 (Railway applications - Rolling stock - Electronic equipment), EN 61373 (Railway applications - Rolling stock equipment - Shock and vibration tests), EN 50121 (Railway applications - Electromagnetic compatibility), and EN 45545-2 (European Union Standard Fire Testing for Railway Components).