Tallysman TW3892

TW3892 GPS L1/L2 + GLONASS G1/G2 + BeiDou B1 + Galileo E1 + L-Band

The TW3892 employs Tallysman's unique Accutenna technology covering the GPS L1/L2, GLONASS G1/G2, Galileo E1, BeiDou B1/B2, SBAS (WAAS, EGNOS & MSAS) and L-band correction services frequency bands.

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Overview

The TW3892 precision tuned dual band, Accutenna technology antenna for reception of GPS L1/L2, GLONASS G1/G2 + BeiDou B1 + Galileo E1+ L-band correction services coverage and is especially designed for precision dual frequency positioning. The TW3892 provides superior multi-path rejection and axial ratio, a linear phase response, and tight Phase Centre Variation (PCV), while protecting against intermodulation and saturation caused by high level cellular 700MHz signals. This antenna is ideal for precision agriculture, autonomous vehicle tracking and guidance, and other applications where precision matters.

Architecturally, the TW3892 features a dual feed circular stacked patch element. The signals from the two orthogonal feeds are
summed in quadrature, pre-filtered in a low loss filter to protect against a wide range of potentially interfering signals, amplified in
high linearity, wide-band LNA, then band-split, tightly filtered and amplified prior to signal recombination at the output.

The TW3892 covers GPS L2 (1227.6 MHz), GLONASS G2 (1248 MHz centre), GPS L1/WAAS/EGNOS/MSAS (1575.42 MHz), GLONASS G1 (1602 MHz, centre), BeiDou B1, Galileo E1 (1561 and 1589 MHz) and L-band correction services (1525-1559 MHz).

The TW3892 is housed in a through-hole mount, weather-proof enclosure for permanent installations. L Bracket or Pipe Mount (part numbers 23-0040-0, 23-0065-0 respectively) are available for non-rooftop installation. A 100 mm ground plane is recommended for non-roof-top installations.

Applications

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

Features

  • Very low Noise Preamp, < 2 dB
  • Axial ratio: < 2 dB typ.
  • Tight Phase Center Variation
  • LNA Gain 35 dB typ.
  • Low current: 24 mA typ.
  • ESD circuit protection: 15 KV
  • Invariant performance from: +2.5 to 16VDC

Benefits

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

Ordering Information

TW3892 – GPS L1/L2 + GLONASS G1/G2 + BeiDou B1 + Galileo E1 + L-band – 33-3892-xx-yy-zzzz

Where xx = connector type, yy = shape and colour of radome and zzzz = cable length in mm (where applicable)