Tallysman Wideband Dual Feed Globalstar™ Antenna


The TW4500 by Tallysman Wireless is a low cost dual feed, magnetic mount, passive Left Hand Circularly Polarised antenna (LHCP) for the 1610 to 1620 MHz frequency band, specifically designed to maximise the performance of the Globalstar™ STU (Simplex Transmit Unit) modems.

The wideband dual feed patch element in the TW4500 has an excellent axial ratio across the entire Globalstar™ bandwidth. Unlike single feed antennas, the TW4500 provides excellent multipath rejection and a truly circular transmission response across the Globalstar™ band.

The TW4500 is the smallest dual feed, high performance Globalstar™ antenna available. It is housed in a compact IP67 magnetic mount enclosure. It available with a 50cm coaxial cable that allows for an STU modem to be mounted away from the weather, yet still provide excellent Globalstar™ coverage.


Key Features

  • Novel 25mm, wideband dual feed patch
  • 4.25 dBic Gain on 100mm Ground plane
  • Great axial ratio, <3 dB over full bandwidth
  • Weather proof, IP67 housing
  • Low Cost all-plastic housing
  • Magnetic mount
  • Wide range of connector options

Additional information


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