Tallysman TW2105

Tallysman TW2105 Embedded Precision GPS L1 Antenna

The TW2105 by Tallysman Wireless is a professional grade, embedded GPS L1 antenna, specially designed for industrial, agricultural and military precision positioning and timing applications.



The TW2105 features 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, Galileo E1 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 rejection.

The TW2105 comes in a compact circular form factor with a built-in 50 mm diameter ground plane and with a 15 cm RG174 cable.


  • 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: 28 dB typ.
  • Low current: 10 mA typ.
  • ESD circuit protection: 15 KV
  • Wide voltage input range: +3.0 to 10 VDC
  • Small form factor


  • Excellent multipath rejection
  • Increase system accuracy
  • Excellent signal reception
  • Great out of band signal rejection
  • RoHS compliant

Ordering Information

  • TW2105 – Embedded GPS L1 antenna, 15 cm cable, SMA Male – 32-2105-0
  • TW2105 – Embedded GPS L1 antenna, 15 cm cable, MCX R/A Male – 32-2105-5
  • TW2105 – Embedded GPS L1 antenna, 15 cm cable, MMCX R/A Male – 32-2105-6