Tallysman TW4721/TW4722

TW4721/TW4722 Wideband Dual Feed GPS/GLONASS/BeiDou/Galileo Antenna

The TW4721 is a compact, wideband GNSS antenna that provides accurate reception for all upper L- band GPS, GLONASS, Beidou, and Galileo signals (L1, G1, B1, B1 BOC, B12, E1) and associated augmentation signals (WAAS, EGNOS and MSAS SBAS).

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Overview

The TW4721/TW4722 is a compact, wideband GNSS antenna that provides accurate reception for all upper L- band GPS, GLONASS, Beidou, and Galileo signals ( L1, G1, B1, B1 BOC, B1-2, E1) and associated augmentation signals (WAAS, EGNOS and MSAS SBAS). This antenna employs Tallysman’s patented Accutenna technology.

The TW4721/TW4722 features a novel 25 mm dual feed wideband patch element that, in sharp contrast with its competitors, provides a truly circularly polarized response, with a typical axial ratio of less than 2 dB over the full bandwidth. This provides a more linear carrier phase response and substantially improved multipath rejection for higher precision applications.

The TW4722 is the pre-filtered version of the TW1721. The pre-filter provides protection from near frequency or strong harmonic interfering signals.

The TW4721/TW4722 is the smallest, lightest, wideband GNSS antenna available. It is housing in a compact IP67 magnetic or adhesive mount enclosure and is available with a wide range of connector options and custom coax cable lengths.

The antenna can be ordered without the magnet. In such cases, the magnet is replaced with a plastic plug to provide a smooth under surface, with the option of ordering it with or without 1.1 mm double-sided VHB tape on the bottom.

Applications

  • Cost Sensitive Mission Critical Positioning
  • UAV/UAS
  • Covert Surveillance
  • Fleet Management & Asset Tracking

Features

  • Dual feed patch element
  • Axial ratio: 2 dB typ.
  • Low noise LNA: 1 dB
  • High rejection mid-section SAW filter
  • High gain: 26 dB typ.
  • Wide voltage input range: 1.8 to 16 VDC
  • IP67 weather proof housing
  • Low Power: 10mA typ. over supply range

Benefits

  • Greatly enhanced multipath rejection
  • Improved GNSS reliability
  • Excellent signal to noise ratio
  • RoHS compliant
  • Ideal for harsh environments
  • Excellent out of band signal rejection

Ordering Information

  • TW4721 – GPS/GLONASS/BeiDou/Galileo Antenna – 33-4721-xx-yyyy
  • TW4722 – GPS/GLONASS/BeiDou/Galileo Antenna – 33-4722-xx-yyyy

xx = connector type yyyy = cable length in mm