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Item #: TW4039B

TW4039B Single Band GNSS Antenna (Pre-Filtered)

The Tallysman TW4039B is a very low power, low gain, compact GNSS antenna covering the GPS L1, as well as SBAS (WAAS, EGNOS & MSAS).

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

Tallysman TW4039B Single Band GNSS Antenna (Pre-Filtered)

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 TW4039B is very low power device, requiring a typical current of just 5.5 mA with constant characteristics over supply voltages from 2.5V to 16V – yet still performs with an excellent noise figure.

The TW4039B supports 1 dB RHCP received power across the full frequency and achieves 40 percent wider bandwidth than competitive antennas. Additionally, the TW4039B has a dual stage Low Noise Amplifier (LNA) with a mid-section SAW that supports a great axial ratio across the full frequency. It also includes an LNA pre-filter, for enhanced protection against high level sub-harmonic signals like LTE and near frequency signals such as WiFi. The TW4039B is housed in an industrial-grade weather-proof enclosure that can be surface mounted via magnet, screws or adhesive material.


  • 7 mA current draw
  • Invariant response, 2.5 to 16 VDC Supply
  • Low Noise 3.3 dB typ.
  • Axial ratio: 4 dB max.
  • Low gain: 16 dB 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 TW4039B 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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