TW3972 Triple Band GNSS Antenna with L-Band

The TW3972 employs Tallysman’s unique Accutenna® technology, covering GPS/QZSS L1/L2/L5, GLONASS G1/G2/G3, Galileo E1/E5a/E5b, BeiDou B1/B2, SBAS (WAAS/EGNOS/GAGAN/MSAS), and L-band correction services.

  • Very low noise preamp < 2.5 dB
  • Axial ratio: < 2.0 dB typ.
  • Tight phase center variation
  • High-gain LNA: 37 dB typ.
  • Low current: 24 mA typ.
  • ESD circuit protection: 15 kV
  • Invariant performance from 2.5 to 16 VDC


Datasheet: TW3972_Datasheet

SKU: TW3972 Category:


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 superiormulti-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 1164MHz to 1254MHz and 1525MHz to 1606MHz.

The TW3972 is housed in a through-hole mount, weather-proof enclosure for permanent installations. L Bracket or Pipe Mount (part numbers 23- 040-0, 23-0065-0 respectively) are available for non-rooftop installation.

A 100 mm ground plane is recommended for non-roof-top installations.