Tallysman TW8889 Dual Band GNSS Antenna

The TW8889 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)

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Product Documents

The Tallysman TW8889 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

Benefits

  • Lightweight (52g)
  • Ideal for L1/L2 RTK survey systems
  • Great multi-path rejection
  • Increased system accuracy
  • Excellent signal-to-noise ratio
  • IP67, REACH and RoHS compliant

Tallysman TW8889 Details

Ideal for dual frequency positioning where minimizing weight is important, the 52-gram TW8889 provides excellent axial ratio and tight Phase Centre Variation (PCV).

The TW8889 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 TW8889 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.

The Tallysman TW8889 is housed in an industrial-grade weather-proof enclosure that can be surface mounted via magnet, screws or adhesive material.

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