The TW5386 from Tallysman is an Integrated Multi-band, Multi-Constellation GNSS Receiver with an antenna. The receiver has an Inertial Measurement Unit (Untethered Dead Reckoning) and RTK for Precise Point Positioning. It can provide sub-1 meter accuracy (standalone) and sub-10 cm accuracy with RTK corrections. The receiver uses a multi-band architecture for the removal for ionospheric errors. It employs multi-stage filtering with LNAs, combined with dual-feed Tallysman ‘Accutenna™’ to significantly improve the rejection of multi-path reflections from neighboring users. The antenna also uses an additional IMU sensor fusion to further reduce multi-path reflections while providing continuous positioning during periods of GNSS outage caused by signal obstruction.
The TW5386 supports GPS/QZSS-L1/L2, GLONASS-G1/G2, Galileo-E1/E5a/E5b, and BeiDou-B1/B2 constellations and can use a number of correction services (RTK base/rover or network) allowing performance optimization according to specific application requirements. It improves the receiver’s convergence capability and resilience to jamming, thereby delivering quick, precise, and reliable positioning solutions unaffected by ionospheric errors. This receiver also accepts RTCM messages from the base station, virtual reference station, or SPARTN SSR message type via the Point Perfect subscription service.
The GNSS receiver is based on the u-blox F9 engine with 184 channels and active CW detection for anti-jamming. It has a tracking and navigation sensitivity of -160 dBm and a reacquisition sensitivity of -160 dBm. The receiver has a cold start time of 25 s and a reacquisition time of 2 s. It can be remotely controlled to provide timed Tx, Rx, and Timepulse values using the RS-485 interface. This receiver requires a DC supply from 5 to 36 V and consumes 0.5 W of power. It is available in an industrial-grade IP-69 weatherproof enclosure that measures 66.5 x 21.0 mm and is ideal for global positioning applications.
