TW1889 Accutenna® Pre-Filtered Embedded Dual-Band GNSS Antenna

Antennas

Coverage

GPS L1/L2, GLONASS G1/G2/G3, Galileo E1/E5b, BeiDou B1/B2

Mount

OEM / Embedded

Amplifier Gain

26 dB typ.

Connector Options

Many Options, Please Inquire

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Overview

The TW1889 employs Tallysman’s unique Accutenna® technology, covering GPS/QZSS L1/L2, GLONASS G1/G2/G3, Galileo E1/E5b, BeiDou B1/B2, as well as SBAS (WAAS/EGNOS/GAGAN/MSAS).

Features

  • Very low Noise Preamp, 2.5 dB
  • Axial ratio: < 2 dB typ.
  • Tight Phase Center Variation
  • LNA Gain 26 dB typ.
  • Low current: 12 mA typ.
  • ESD circuit protection: 15 KV
  • Invariant performance from: +2.5 to 16 VDC 

Benefits

  • Lightweight (37g)
  • Ideal for L1/L5 RTK survey systems
  • Great multi-path rejection
  • Increased system accuracy
  • Excellent signal-to-noise ratio
  • IP67, REACH and RoHS compliant


Details

Ideal for dual-frequency positioning where minimizing weight is important, the 37-gram TW1889 provides excellent axial ratio and tight Phase Centre Variation (PCV).

The TW1889 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 LNA, then band-split for narrow filtering in each band and further amplified prior to recombination at the output.

The TW1889 also includes an LNA pre-filter that provides enhanced protection against high-level sub-harmonic signals like LTE and near-frequency signals such as WiFi.

Tallysman offers custom tuning services to optimize the performance of the TW1889 for any OEM installation environment.


Drawings

Dimensions in Millimeters