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Item #: TW4037

TW4037 Single Band GNSS Antenna

The Tallysman TW4037 is a low power, low gain, compact GNSS antenna covering the GPS L1, as well as SBAS (WAAS, EGNOS & MSAS).

SKU: 33-4037 Categories: , Manufacturer: Tallysman Wireless

Tallysman TW4037 Single Band GNSS Antenna

The TW4037 requires very low power of just 5.5 mA with constant characteristics over supply voltages from 2.5V to 16V .   It is ideal for battery operated positioning and fleet management and asset tracking applications. This single-feed patch element achieves a very wide bandwidth compared to other competitive antennas. It supports 1 dB RHCP received power across the full frequency. The TW4037 has a dual stage Low Noise Amplifier (LNA) with a mid-section SAW that supports a great axial ratio across the full frequency. The TW4037 is housed in an industrial-grade weather-proof enclosure that can be surface mounted via magnet, screws or adhesive material.

LNA Pre-filter Available
If you need enhanced protection against high level sub-harmonic signals like LTE and near frequency signals such as WiFi, the alternative TW4039 provides these additional benefits with an LNA pre-filter. 


  • 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

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