Poynting HELI-31 Ultra-Wideband Uni-Directional High Gain Mine/Tunnel Antenna - 1710-7200 MHZ Circular Polarized Antenna

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  • Ultra-wideband circular polarized
  • Wi-Fi 6 (802.11ax) & LTE/4G/5G
  • Circular Polarized HELI antenna provides enhanced signal propagation and connection stability within a tunnel.
  • Left-Hand Circular (LHC) & Right-Hand Circular (RHC) polarized.
  • Uni-directional – radiates in one direction in a tunnel.
  • Ruggedized & water ingress protected.
  • Ideal for Mining & Tunnel M2M and IoT deployments

Product Overview

This high gain Ultra-wideband directional antenna compliments our MinePoynt mine and tunnel antennas.

The HELI-31 forms part of a series of MiniHELI antennas. These antennas are only mini in size relative to their bigger brothers which makes these antennas ideal for mining tunnels where IoT/M2M connectivity is deployed and can also be used for coverage into the stopes.

The HELI-31 Ultra-Wideband antenna, radiating in one direction (i.e. Uni-directional), which make them ideal for the coverage from 1710- 7200 MHz. These antennas are typically used for the deployment of IoT within the tunnel to provide telemetry and mine automation. This wide-band helical antenna propagates around tunnel bends in a Non-Line of Sight scenario and provides immunity to many of the signal disrupting objects such as trains and drilling machinery which appear to obscure the tunnel.


  • Proven antenna performance giving maximum range.
  • Ideal where other devices used polarization could change.
  • High gain over the 1710 – 7200 MHz range.
  • Intrinsically safe version available.

Application Areas

  • Supplementing fiber /cable networks “Hotspots” to areas to enhance mobility or extend networks to inaccessible areas such as mines and tunnels.
  • Underground telemetry.
  • Creating of complete underground in tunnel wide data networks and internet/LTE and Wi-Fi connectivity.
  • Seamless connection to personnel using cellular phones and smart devices and tablets.