Calian adds the TW5394/TW5794 Smart GNSS Precise Heading Antenna to its line of Smart GNSS Antennas, targeting Robotics and Drone markets. 

December 19, 2023

Calian adds the TW5394/TW5794 Smart GNSS Precise Heading Antenna to its line of Smart GNSS Antennas, targeting Robotics and Drone markets. 



(Ottawa, Ontario, Canada, December 19, 2023).

Calian adds the TW5394/TW5794 Smart GNSS Precise Heading Antenna to its line of Smart GNSS Antennas, targeting Robotics and Drone markets.

Focusing on the burgeoning market for precise heading in unmanned vehicles and robots, Calian® GNSS Ltd. is introducing the TW5394 (fixed mount … TW5794 surface mount) Smart GNSS Precise Heading Antenna, which supports moving-base RTK precise heading and PPP-RTK high precision location capability via L-Band. The TW5394/5794 combines Calian’s multi-band Accutenna® technology with u-blox’s Zed-F9P GNSS and NEO-D9S L-Band receivers. The integrated L-Band receiver allows operators to deploy an augmented position solution when operating outside of terrestrial communications range by receiving PPP-RTK augmentation directly from the satellite. Deployment of two TW5394/5794 devices as a moving base + rover antenna pair enables a precise heading solution, yielding 0.4º heading accuracy when deployed with a minimum 1-meter baseline. Communication interface options include USB or RS-232 to the host system.

TW5394/5794 employs Calian’s eXtended Filtering, which mitigates near-band and out-of-band interference sources such as LTE signals and their harmonics, including the planned Ligado service in North America, enabling operation in the most challenging urban deployments.

The TW5394/5794 builds on Calian’s 10+ years of integrating its antenna technology with receiver technology in an easy-to-deploy package that mitigates common GNSS engineering challenges.

Calian has developed ROS2® drivers, in conjunction with InDro Robotics (https://indrorobotics.ca), for fast and reliable integration of Calian Smart GNSS antennas into robotic applications. These drivers enable integrators to easily utilize Calian High Precision Smart GNSS Antennas to provide high-accuracy location information, including latitude, longitude, speed, precise heading, and quality of fix.

Software Development Kits are available to complement the TW5394/5794, the 33-5394SDK-1 (for the TW5394) and the 33-5794SDK-1 (for the TW5794), which bundle a TW5394 or TW5794 antenna respectively (USB versions) with Calian’s TruPrecision configuration/evaluation software and 60 days of complimentary u-blox PointPerfect® PPP-RTK augmentation service.

For more information, please reference the datasheets:

TW5394: https://tallysman.com/products/TW5394

TW5794: https://tallysman.com/products/TW5794

TW5794SDK: https://tallysman.com/products/TW5794SDK

Trust Calian to provide clean and pure GNSS signals in a noisy RF world.

About Calian

Based in Ottawa, Canada, Calian® is focused on high-precision GNSS and Iridium antenna design and manufacturing. Calian® is known for its Accutenna®, VeraPhase®, VeraChoke®, VeroStar™, and Helical antenna innovations. These technologies have provided accuracy and precision that exceed customer expectations.