The Tallysman TW162A is an automotive-grade full GNSS band Smart Power signal splitter connecting one antenna to two receivers.

Autonomous and automotive vehicle applications are dependent on very high availability GNSS components. This results in a need for resilient fault-tolerant components, which are essential in avoiding service interruptions.

Vehicle rooftop antenna space is often at a premium, and mission applications often require more than one GNSS receiver. The Tallysman TW162A facilitates one GNSS antenna providing the signal to two GNSS receivers. 

Tallysman’s TW162A is designed with AEC-Q100-certified components, ensuring the unit will operate under extreme temperature conditions.

The Tallysman TW162A splitter 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.

Key Features

  • Tallysman TW162A 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.
  • 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 Tallysman TW162A is suitable for applications in harsh environments with an operating temperature threshold of -40 °C to 105 °C and suitable for storage in -50 °C to 115 °C temperatures.

Additional Features

  • Offers the best-in-class performance in terms of noise figure, isolation, and linearity
  • Packaged in a rugged military-grade aluminum enclosure
  • Available with FAKRA connectors (3x Z or A+B+ C)
  • Amplification to compensate for signal-splitting loss
  • IP67-compliant
  • Allows two GNSS receivers to share a single antenna
  • Fits in-line with antenna cable


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