TW162A Automotive-Grade GNSS Signal Splitter

Tallysman TW162A Automotive-Grade 1-to-2 Port Smart Power GNSS Signal Splitter

The TW162A is an automotive-grade full GNSS band Smart Power signal splitter that connects one antenna to two receivers and supports 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.



GNSS has become a critical component in autonomous and automotive vehicle applications, all of which require very high availability. As a result, resilient fault-tolerant components are essential to avoid service interruptions. Tallysman’s TW162A is designed with AEC-Q100-certified components, ensuring the unit will operate under extreme temperature conditions.

The TW162A provides two 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 – 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 TW162A 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 TW162A will provide all connectors with a current draw lower than 1 mA, indicating an antenna fault.

The TW162A 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 aluminum housing.

The TW162A is available with FAKRA connectors (3x Z or A+B+C) and offers standard gain to compensate for the signal-splitting loss.


  • GNSS signal distribution
  • GNSS receiver testing
  • High-availability applications
  • Network and infrastructure timing
  • Autonomous and automotive vehicles


  • 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
  • FAKRA connectors (3x Z or A+B+C)


  • Allows two GNSS receivers to share a single antenna
  • Fits in-line with antenna cable
  • Robust design


Calian GNSS (formerly Tallysman Wireless) offers a warranty of 1-3 years on all of it’s products. The warranty ensures that the products are free from defects of materials or workmanship and conform to Calian’s specifications under normal use. Embedded antennas are covered by a one (1) year standard warranty. All housed antennas and accessories (inline amplifiers, splitters, and bias tees) manufactured after January 1, 2020 are covered by a three-year warranty. The warranty is covered in more detail on the Calian GNSS Warranty page.

Why Buy from Us?

In business since 2004, Canal Geomatics is an authorized dealer for Calian GNSS and has established itself as an industry-leading distributor of high-precision positioning products in North America. Our mission is to find the best solution for each unique application and extend premium support to ensure the long-term success of our customers. We offer both volume and reseller discounts for the majority of our product lines.


The TW162A automotive-grade 1-to-2 port smart power GNSS signal splitter 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.