TW7972XF Extended-Filter Triple-Band GNSS Antenna + L-Band



GPS/QZSS-L1, GPS/QZSS-L2, GPS/QZSS-L5, QZSS-L6, GLONASS-G1, GLONASS-G2, GLONASS-G3, Galileo-E1, Galileo-E5a, Galileo-E5b, BeiDou-B1, BeiDou-B2, BeiDou-B2a, NavIC-L5, L-band correction services


Surface Mount / Magnet

Amplifier Gain

37 dB typ.

Connector Options

Many Options, Please Inquire

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The TW7972XF is a precision-tuned surface mount triple-band 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.


  • Very low noise preamp (< 2.5 dB typ.)
  • Low axial ratio (< 1.5 dB at zenith)
  • Tight phase centre variation
  • High-gain LNA (37 dB typ.)
  • Low current (45 mA typ.)
  • ESD circuit protection (15 kV)
  • Invariant performance from 2.5 to 16 VDC
  • IP67, REACH, and RoHS compliant


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


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
Calian XF antennas have been designed to mitigate out-of-band signals and prevent
GNSS antenna saturation. 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.

This antenna is ideal for precision agriculture, autonomous vehicle tracking and
guidance, and other applications where precision matters. The TW7972XF provides
superior multipath signal rejection, a linear phase response, and tight phase centre
variation (PCV).

The TW7972XF 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 TW7972XF offers excellent
axial ratio and a tightly grouped phase centre variation.

This antenna provides superior multipath rejection and axial ratio, a linear phase
response, and tight phase centre variation (PCV), while protecting against
intermodulation and saturation caused by high-level LTE 700 MHz signals. The
TW7972XF is housed in a magnetic mounted, IP67 weatherproof enclosure.