TW3442 Single Band GNSS Antenna (Pre-filtered)






Amplifier Gain

37 dB typ.

Connector Options

Many Options, Please Inquire

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The TW3442 employs Calian’s unique Accutenna® technology, covering GPS/QZSS L1, GLONASS G1, as well as SBAS (WAAS, QZSS, EGNOS & MSAS).


  • Great axial ratio: 1 dB typ.
  • High gain LNA: 37 dB min.
  • Low noise LNA: 3.5dB typ
  • Sharp pre-filter
  • Low current: 19 mA typ.
  • Wide supply voltage: 2.5 to 16 VDC
  • Available conical radome (Timing Apps)
  • IP69K, RoHS, and REACH compliant


  • Excellent circular polarisation
  • Long Cable Runs
  • Excellent signal to noise ratio
  • Excellent multipath rejection
  • Exceptional out-of-band rejection
  • Increased system accuracy
  • Ideal for harsh environments


Ideal for timing, mobile, precision and all challenging applications the TW3442 provides truly circular response over its entire bandwidth thereby producing excellent multi-path and out-of-band signal rejection.

TW3442 antenna features a dual-feed wide-band patch element, with a three-stage Low Noise Amplifier (LNA), and provides an excellent axial ratio that is constant across the full frequency,  superb phase linear response and tight phase centre variation.

The LNA also includes a pre-filter to enhance protection against high level sub-harmonic signals like LTE and near frequency signals such as WiFi.

To minimize performance impact from signal jamming threats, the TW3442 is compatible with Calian’s Anti-Jamming add-on, which modifies the radiation pattern of the GNSS antenna to eliminate signals arriving from -10° to +15° from horizon, while slightly increasing the gain of the antenna at zenith.

The TW3442 is housed in a permanent mount industrial grade weather-proof enclosure, available in conical or flat radome styles and in grey or white colours. Two options for pole mounting are available an L-Bracket or a Pipe Mount. A 100mm ground plane is recommended for non-roof-top installations.


Part Number: 33-3442-xx-yy-zzzz