Tallysman TW2100/TW2102

TW2100/TW2102 Magnet Mount Dual Feed GPS L1 Antenna

The TW2100/TW2102 employ Tallysman’s unique Accutenna technology covering the GPS L1 and SBAS (WAAS, EGNOS & MSAS) frequency bands (1565 to 1585 MHz).



The TW2100/TW2102 employ Tallysman’s unique Accutenna technology in a magnet mount GPS L1 antenna, specially designed for industrial, agricultural and military precision positioning and timing applications.

The antennas feature a custom high performance, dual-feed, wide band patch element. Its LNA configuration provides a LNA for each feed, a mid section high rejection SAW for the combined signal, followed by a final stage of LNA. It provides ±10MHz bandwidth centred on 1575.42 MHz and covers all GPS L1, and SBAS (WAAS/EGNOS/MSAS) signals. It features great axial ratio over the entire frequency range (<3dB), excellent circular polarized signal reception, great multipath rejection and out-of-band signal

The TW2102 has a pre-filter to provide strong protection against near frequency and harmonic signals.

The antennas are housed in a compact, industrialgrade weather-proof, magnet mount enclosure and a wide range of connector.


  • High Accuracy & Mission Critical GPS
  • Precision Agriculture, Mining & Construction
  • Military & Security
  • Avionics
  • Law Enforcement & Public Safety
  • Fleet Management & Asset Tracking


  • Great axial ratio: <3 dB over full bandwidth
  • Low noise LNA: ≤1 dB
  • High rejection SAW filter
  • High gain: 27 dB typ.
  • Low current: 15 mA typ.
  • ESD circuit protection: 15 KV
  • Wide voltage input range: +2.5 to 16 VDC
  • Weather proof housing: IP67


  • Excellent multipath rejection
  • Increase system accuracy
  • Excellent signal to noise ratio
  • Great out of band signal rejection
  • Ideal for harsh environments
  • RoHS compliant

Ordering Information

  • TW2100 – GPS L1 antenna – 33-2100-xx-yyyy
  • TW2102 – GPS L1 antenna with pre-filter – 33-2102-xx-yyyy

Where xx = connector type and yyyy = cable length in mm