TW3885LXF Dual-Band (L1/L5) GNSS Antenna

Overview

The TW3885LXF is a precision-tuned dual-band Accutenna® technology antenna providing GPS/QZSS-L1/L5, GLONASS-G1/G3, Galileo-E1/E5a/E5b, BeiDou-B1/B2a/B2, NavIC-L5 plus L-Band correction services, including the satellite-based augmentation system (SBAS) available in the region of operation [WAAS (North America), EGNOS (Europe), MSAS (Japan), or GAGAN (India)].

Calian’s eXtended Filter (XF) antenna technology has been designed to mitigate out-ofband signals and prevent GNSS antenna saturation. 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.
Calian’s custom XF filtering mitigates all existing signals and new Ligado and LTE signals, enabling the antennas and attached GNSS receivers to perform optimally.

The TW3885LXF 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 TW3885LXF offers excellent axial ratio and a tightly grouped phase centre variation.

Ideal for timing, autonomous vehicle tracking and guidance, precision agriculture, and other applications where precision matters, The TW3885LXF provides superior multipath signal rejection, a linear phase response, and tight phase centre variation (PCV).

The TW3885LXF is housed in a through-hole mount, weatherproof enclosure for permanent installations. L-bracket (PN 23-0040-0) or pipe mount (23-0065-0) are available. A 100mm ground plane is provided with the antenna, which ensures optimal antenna performance. See TW3000 Installation and Waterproofing Guide: https://www.tallysman.com/resource/tallysman-tw3000-gnss-antenna-waterproofing-guide/