GNSS has become a critical component in safety, security, timing, and infrastructure applications, all of which require very high availability. As a result, resilient fault-tolerant components are essential to avoid service interruptions.
The design of first-generation GNSS signal splitters suffered from a single point of failure: only one attached receiver powered the splitter and the antenna. If this receiver failed or was unplugged, all attached receivers also failed.
Tallysman’s current-generation TW163 Smart Power GNSS signal splitter provides two additional key features:
First, it accepts power from all attached GNSS receivers and selects power from a receiver using the following protocol. Port #1 is given priority if its voltage is within the specified range (3.0 V – 12.5 VDC). However, if port #1’s receiver is disconnected or if its receiver power goes below the under-voltage or above the over-voltage specification, the TW163 will switch to the next port in numerical order, as long as its power and voltage are within the expected range. The switching and port selection is, therefore, deterministic.
Second, if the antenna fails and does not draw current, the TW163 will provide all connectors with a current draw lower than 1 mA, indicating an antenna fault.
The TW163 offers the best in-class performance in terms of noise figure, isolation, and linearity. In addition, it is packaged in a robust, compact, lightweight, and water-proof (IP67) corrosion-protected aluminum housing.
The TW163 is available with either TNC or type-N connectors and offers 10 dB gain over the splitting-loss.
- GNSS signal distribution
- GNSS receiver testing
- High-availability applications
- Network and infrastructure timing
- Accepts power from all attached receivers
- Automatically switches on power failure of one receiver
- Antenna failure detection/indication
- Rugged military-grade aluminum enclosure
- Amplification to compensate for signal-splitting loss
- Very low noise figure
- Allows up to four GNSS receivers to share a single antenna
- Fits in-line with antenna cable
- Robust package
- Ideal for harsh environments
The TW163 1-to-2 port smart power GNSS signal splitter from Tallysman is available through Canal Geomatics. If you would like more information about this product, please feel free to get in touch with us by completing the Request Pricing form.