Tallysman TW3872 GNSS Antenna

Tallysman TW3872 Dual-Band GNSS Antenna (Pre-Filtered)

The TW3872 dual-band GNSS antenna employs Tallysman's unique Accutenna® technology, covering GPS/QZSS L1/L2, GLONASS G1/G2, Galileo E1, BeiDou B1, as well as SBAS (WAAS/EGNOS/MSAS).

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Overview

Ideal for precision positioning and RTK surveying systems, the TW3872 provides excellent circular polarized signal reception, great multi-path and out-of-band signal rejection.

The TW3872 features a precision tuned, circular dual-feed, stacked patch element. The signals from the two orthogonal feeds are combined in a hybrid combiner, amplified in a wide-band Low Noise Amplifier (LNA), then band-split for narrow filtering in each band and further amplified prior to recombination at the output.

The TW3872 also includes an LNA pre-filter, providing enhanced protection against high level sub-harmonic signals like LTE and near frequency signals such as WiFi.

The TW3872 performs with excellent axial ratios and a tightly grouped phase center variation.

The TW3872 is housed in a permanent mount industrial grade weather-proof enclosure, available in conical or flat radome styles and in grey or white colours. Two options for pole mounting are available an L-Bracket or a Pipe Mount. A 100mm ground plane is recommended for non-roof-top installations.

Applications

  • Precision GPS position
  • Dual Frequency RTK receivers
  • Mission Critical GPS Timing
  • Military & Security
  • Network Timing and Synchronization

Features

  • Low Noise Amplifier (LNA):< 2 dB
  • Axial ratio: < 2 dB typ.
  • Tight Phase Center Variation (PCV)
  • High Gain: 35 dB typ.
  • Low current: 24 mA typ.
  • Invariant performance from: +2.5 to 16VDC

Benefits

  • Ideal for L1/L2 RTK surveying systems
  • Great multi-path rejection
  • Increased system accuracy
  • Great signal to noise ratio
  • IP67, REACH, and RoHS compliant

Warranty

Calian GNSS (formerly Tallysman Wireless) offers a warranty of 1-3 years on all of it’s products. The warranty ensures that the products are free from defects of materials or workmanship and conform to Calian’s specifications under normal use. Embedded antennas are covered by a one (1) year standard warranty. All housed antennas and accessories (inline amplifiers, splitters, and bias tees) manufactured after January 1, 2020 are covered by a three-year warranty. The warranty is covered in more detail on the Calian GNSS Warranty page.

Why Buy from Us?

In business since 2004, Canal Geomatics is an authorized dealer for Calian GNSS and has established itself as an industry-leading distributor of high-precision positioning products in North America. Our mission is to find the best solution for each unique application and extend premium support to ensure the long-term success of our customers. We offer both volume and reseller discounts for the majority of our product lines.

Ordering

The TW3872 dual-band GNSS antenna is available through Canal Geomatics. If you would like more information about this product, please feel free to get in touch with us by completing the Request Pricing form.