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Item #: TW4039

TW4039 Single Band GNSS Antenna (Pre-Filtered)

The TW4039 is a very low power, low gain, compact GNSS antenna covering the GPS L1, as well as SBAS (WAAS, EGNOS & MSAS).

SKU: 33-4039 Categories: , Manufacturer: Tallysman Wireless

Tallysman TW4039 Single Band GNSS Antenna (Pre-Filtered)

Ideal for battery operated positioning and fleet management and asset tracking applications that require protection against close-proximity 700MHz LTE and L-band transmitting antennas, the TW4039 is a low-power device, requiring a typical current consumption of just 5.5 mA with constant characteristics over supply voltages from 2.5V to 16V, while performing with an excellent noise figure.

This single feed patch element achieves 40 percent wider bandwidth than competitive antennas and supports 1 dB RHCP received power across the full frequency. Furthermore, 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. This antenna is housed in an industrial-grade weather-proof enclosure that can be surface mounted via magnet, screws or adhesive material.


  • 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


TW4xxx Housed Drawing
Dimensions in Millimeters

Tallysman TW4037/TW4039 Data Sheet

Tallysman Connector and Cable Options

Tallysman offers a number of connector and cable options for its antennas. Use the guide below to find the available options for your antenna or contact us for help.

Tallysman Part Number Ordering Guide

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