Tallysman TW3972

TW3972 Triple Band GNSS Antenna + L-Band Correction Services

The TW3972 is an Accutenna technology antenna providing triple band GPS L1/L2/L5, GLONASS G1/G2/G5, BeiDou B1/B2, Galileo E1/E5 plus L-band correction services coverage and is especially designed for precision triple frequency positioning.

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Overview

The TW3972 is an Accutenna technology antenna providing triple band GPS L1/L2/L5, GLONASS G1/G2/G3, BeiDou B1/B2, Galileo E1/E5a+b plus L-Band correction services coverage and is especially designed for precision triple frequency positioning. The TW3972 provides superior multi-path signal rejection, a linear phase response, and tight Phase Centre Variation (PCV). This antenna is ideal for precision agriculture, autonomous vehicle tracking and guidance, and other applications where precision matters.

The TW3972 features a precision tuned, twin 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 antenna also has a strong pre-filter to mitigate inter-modulated signal
interference from LTE and other cellular bands.

The TW3972 offers excellent axial ratio and a tightly grouped phase center variation.

The TW3972 covers from 1164 MHz to 1254 MHz and 1525 MHz to 1606 MHz.

The TW3972 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.

This product is also available in an OEM format (TW3967 for 28dB and TW3972E for 35dB).

Applications

  • Precision GPS position
  • Triple Frequency RTK receivers
  • Military & Security

Features

  • Very low Noise Preamp, < 2.5 dB
  • Axial ratio: < 2 dB typ.
  • Tight Phase Center Variation
  • LNA Gain 37 dB typ.
  • Low current: 24 mA typ.
  • ESD circuit protection: 15 KV
  • Invariant performance from: +2.5 to 16VDC

Benefits

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

Ordering Information

TW3972 – Triple Band GNSS antenna with L-Band Correction – 33-3972-xx-yy-zzzz

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