TW162

The Calian TW162 is a professional-grade, full GNSS band signal splitter that connects one antenna to two receivers. It supports a wide range of signals, including GPS/QZSS-L1/L2/L5, QZSS-L6, GLONASS-G1/G2/G3, BeiDou-B1/B2/B2a/B3, Galileo-E1/E5a/E5b/E6, NavIC-L5, and L-band correction services.

Key Considerations

GNSS is crucial for safety, security, timing, and infrastructure applications, all of which demand high availability. Therefore, resilient, fault-tolerant components are essential to prevent service interruptions.

First-generation GNSS signal splitters had a significant drawback: only one attached receiver powered the splitter and the antenna. If this receiver failed or was unplugged, all attached receivers would also fail.

The Calian TW162 Smart Power GNSS signal splitter addresses this issue with two key features:

• Power Management: The TW162 accepts power from all attached GNSS receivers and selects power using a specific protocol. Port #1 has priority if its voltage is within the specified range (3.0 V – 12.5 V). If Port #1’s receiver is disconnected or its power is outside the specified range, the TW162 switches to the next port in numerical order, provided its power and voltage are within the expected range. This switching and port selection process is deterministic.
• Antenna Fault Detection: If the antenna fails and does not draw current, the TW162 will provide the receiver powering the antenna with a current draw lower than 2 mA, indicating an antenna fault.

The TW162 offers best-in-class performance in terms of noise figure, isolation, and linearity. It is housed in a corrosion-protected, military-grade aluminum (6061-T6) casing, which is robust, compact, and lightweight. The splitter has also passed the IP67 water ingress test.

The TW162 is available with either TNC or type-N connectors and offers standard gain to compensate for signal-splitting loss.