TW4039 Single Band GNSS Antenna Pre-Filtered

Tallysman TW4039 Single Band GNSS Antenna (Pre-Filtered)

The TW4039 single band GNSS antenna (pre-filtered) from Tallysman supports coverage for GPS L1, as well as SBAS (WAAS, EGNOS & MSAS).



Ideal for battery operated positioning and fleet management & asset tracking applications that require protection against close-proximity 700MHz LTE and L-band transmitting antennas, the TW4039 single band GNSS antenna (pre-filtered)from Tallysman is amongst the lowest power devices available, requiring a typical current consumption of just 5.5 mA with constant characteristics over supply voltages from 2.5V to 16V – yet it still performs with an excellent noise figure.

Featuring a precisely tuned, single feed patch element that achieves 40% wider bandwidth than competitive antennas, the TW4039 supports 1 dB RHCP received power across the full frequency. Additionally, the TW4039 has a dual stage Low Noise Amplifier (LNA) with a mid-section SAW that supports a great axial ratio across the full frequency.

The TW4039 also includes an LNA pre-filter, providing enhanced protection against high level sub-harmonic signals like LTE and near frequency signals such as WiFi.

The TW4039 is housed in an industrial-grade weather-proof enclosure that can be surface mounted via magnet, screws or adhesive material.


  • Battery Operated Monitoring
  • Covert Surveillance
  • Fleet Management & Asset Tracking
  • Satcom Based AVL Solutions


  • 5.5 mA current draw
  • Invariant response, 2.5 to 16 VDC Supply
  • Low Noise 3.3 dB typ.
  • Axial ratio: 4 dB max.
  • Low gain: 12dB typ.
  • IP67 weather proof housing


  • Longer battery life
  • Excellent signal to noise ratio
  • RoHS compliant
  • Ideal for harsh environments
  • Excellent out of band signal rejection


The TW4039 single band GNSS antenna (pre-filtered) 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.

TW4037 – Wideband GPS Antenna – 33-4037-xx-yyyy
TW4039 – Prefiltered Wideband GPS Antenna – 33-4039-xx-yyyy
Where xx = connector type, yyyy = cable length in mm

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