Tallysman TW3967XF Embedded Extended-Filter Triple-Band GNSS Antenna + L-Band

Tallysman TW3967XF Embedded Extended-Filter Triple-Band GNSS Antenna + L-Band

The TW3967XF embedded extended-filter triple-band GNSS antenna from Tallysman supports coverage for GPS/QZSS L1/L2/L5, GLONASS G1/G2/G3, Galileo E1/E5a/E5b, BeiDou B1/B2/B2a, NavIC L5 and L-band correction services.

REQUEST PRICING

Overview

The TW3967XF extended-filter GNSS antenna from Tallysman is an embedded precision-tuned Accutenna® technology antenna providing coverage for triple-band GPS/QZSS L1/L2/L5, GLONASS G1/G2/G3, Galileo E1/E5a/E5b, BeiDou B1/B2/B2a, NavIC L5, including the satellite-based augmentation system (SBAS) available in the region of operation [WAAS (North America), EGNOS (Europe), MSAS (Japan) or GAGAN (India)], plus L-Band correction services. It is especially designed for precision triple-frequency positioning.

The radio frequency spectrum has become more congested as new LTE bands are activated and their signals or harmonic frequencies [e.g. 800MHz x 2 = 1600MHz (GLONASS-G1)] can affect GNSS antennas and receivers. In North America, planned Ligado signals at 1525 – 1536 MHz can especially impact GNSS antennas that support space-based L-band correction services (1539 – 1559 MHz). New LTE signals in Europe [Band 32 (1452 – 1496 MHz)] and Japan [Bands 11 and 21 (1476 – 1511 MHz)] have also been observed to interfere with GNSS signals. In addition, Inmarsat satellite communication (uplink: 1626.5 – 1660.5 MHz) can also affect GNSS signals. The new Tallysman XF antennas have been designed to mitigate out-of-band signals and prevent GNSS antenna saturation. Tallysman’s custom XF filtering mitigates all existing signals and new Ligado and LTE signals, enabling the antennas and attached GNSS receivers to perform optimally.

Ideal for autonomous vehicle tracking and guidance, precision agriculture, and other applications where precision matters, The TW3972XF provides superior multipath signal rejection, a linear phase response, and tight phase centre variation (PCV).

The TW3967XF antenna features a precision-tuned, twin circular dual-feed, stacked patch element. The signals from the two orthogonal feeds are combined in a hybrid combiner, amplified in a wideband LNA, then band-split for narrow filtering in each band and further amplified prior to recombination at the output. The antenna also has a strong pre-filter to mitigate inter-modulated signal interference from Ligado, LTE and other cellular bands. The TW3967XF offers excellent axial ratio and a tightly grouped phase centre variation.

The standard TW3967 antenna (28 dB gain) and the low-gain extended-filter TW3967LGXF antenna (20 dB gain) are also available.

Applications

  • Autonomous vehicle tracking and guidance
  • Triple-frequency RTK and PPP receivers
  • Precision GNSS position
  • Precision agriculture
  • Network timing & synchronization
  • Safety & security

Features

  • Very low noise preamp (< 2.5 dB typ.)
  • Low axial ratio (< 2.0 dB typ.)
  • Tight phase centre variation
  • LNA gain (28 dB typ.)
  • Low current (45 mA typ.)
  • ESD circuit protection (15 kV)
  • Invariant performance from 2.5 to 16 VDC
  • REACH and RoHS compliant

Benefits

  • Excellent interference mitigation
  • Excellent multipath rejection
  • Increased system accuracy
  • Excellent signal-to-noise ratio

Ordering

The TW3967XF embedded extended-filter triple-band GNSS antenna + L-Band 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.

Canal Geomatics remains open.Learn More