TW3442 Single Band Pre-Filtered GNSS Antenna

Tallysman TW3442 Single Band Pre-Filtered GNSS Antenna

The TW3442 single band pre-filtered GNSS antenna from Tallysman supports coverage for GPS/QZSS L1, GLONASS G1, as well as SBAS (WAAS, QZSS, EGNOS & MSAS).



Ideal for timing, mobile, precision and military applications the TW3442 single band pre-filtered GNSS antenna from Tallsyman 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.

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.

To minimize performance impact from signal jamming threats, the TW3442 is compatible with Tallysman’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.


  • GPS/GLONASS Long Cable Mobile/Fixed Installations
  • High Accuracy & Mission Critical Global Positioning
  • Precision Agriculture, Mining & Construction
  • Military & Security
  • Law Enforcement & Public Safety


  • 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)


  • 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
  • IP69K, RoHS and REACH compliant


The TW3442 single band pre-filtered GNSS antenna 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.

TW3440 – GPS/GLONASS Antenna – 33-3440-xx-yy-zzzz
TW3442 – GPS/GLONASS Antenna – 33-3442-xx-yy-zzzz
Where xx = connector type, yy = shape and colour of radome, and zzzz = cable length in mm (where applicable)

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