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Item #: TW3870E

TW3870E Dual Band Antenna

The Tallysman TW3870E employs Tallysmans unique Accutenna™ technology which provides circular response over the entire bandwidth and is designed for precision dual frequency positioning.

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SKU: 33-3870E Categories: , Manufacturer: Tallysman Wireless

Tallysman TW3870E Antenna

The TW3870E Cover GPS L1/L2 GLONASS G1/G2 Galileo E1 BeiDou B1 Frequency Bands

The Tallysman TW3870E employs Tallysmans unique Accutenna™ technology which provides truly circular response over the entire bandwidth thereby producing multipath signal rejection resulting in higher positional and timing accuracy. The TW3870E covers the GPS L1/L2, GLONASS G1/G2, and SBAS (WAAS, EGNOS & MSAS) frequency bands. The TW3870E offers excellent axial ratio and a tightly grouped phase center.


  • Accutenna™ Technology
  • Tight Phase Center Variation (PCV)
  • Low noise LNA: 2dB max.
  • Temperature compensating LNAs


  • Superior multipath signal rejection
  • Ideal for RTK and PPP applications
  • Excellent signal-to-noise ratio
  • Consistent response in all operating temperatures

The OEM TW3870E is supplied with a standard 60mm diameter circular ground plane, with a coaxial cable terminated with a connector. Mounting holes are provided for attachment to larger ground planes. 

The TW3870E is REACH and RoHS compliant.

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 TW3872E provides these additional benefits with an LNA pre-filter.

To minimize performance impact from signal jamming threats, the pre-filtered version of this antenna 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.

Tallysman 3870E GPS L1/L1 GLONASS G1/G2 Galileo E1 Beidou B1 Data Sheet

Premium Antennas for Unmanned Vehicles (UAVs)

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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