Poynting A-HELI-0021-V3-02 (2x) 2×2 Dual-Band WiFi Circular Polarised Antenna, IP65 Outdoor, 12dBi max. 2.4-2.5GHz & 13dBi max. 5-6GHz, 400mm N(m)

The HELI-21 is part of a series of mini HELI antennas. These antennas are small in size compared to their bigger brothers, the HELI-3, HELI-4 & HELI-8, but offer medium to high gain, making these antennas ideal for mine tunnels where IoT/M2M connectivity is deployed and can also be used for in-tunnel coverage.
The HELI-21 is a dual band 2.4GHz and 5GHz Wi-Fi antenna that radiates in both directions (i.e. bi-directional). This makes it ideal for covering both Wi-Fi bands in mining and other tunnels. These antennas are typically used for the deployment of IoT in tunnels to enable telemetry and mine automation. These antennas are available with both left-hand circular (LHC) and right-hand circular (RHC) polarised antenna elements to ensure optimal decorrelation within a MIMO deployment when using the BRKT-45, resulting in optimal performance. The decorrelation is due to the polarisation difference and spatial diversity between the two antenna elements, improving MIMO performance and RF reliability in a mine tunnel. The dual-band Wi-Fi link propagates around tunnel curves in a non-line-of-sight scenario and provides immunity to many Wi-Fi signal-interfering objects such as trains and drilling machines that appear to obscure the tunnel.

SCOPE OF DELIVERY
– Antenna, 2 mounting brackets

HIGHLIGHTS
– Improved signal propagation and connection stability within a tunnel
– Unidirectional – radiates in one direction in the tunnel
– Careful mechanical design ensures robustness, water and dust resistance
– Ideal for M2M and Wi-Fi deployments in mining and tunnels

TECHNICAL DETAILS
– (2x) 2×2 Dual-Band WiFi
– IP65 Outdoor
– 12dBi max. 2.4-2.5GHz & 13dBi max. 5-6GHz
– RG-58
– 350mm N(m)
– Ceiling mount
– MIL-STD 810F/ASTM B117, IK08, UL 94-HB

APPLICATION AREAS
– Complement fibre/cable networks by providing wireless “hotspots” in areas to improve mobility or extend networks to inaccessible areas such as mines and tunnels
– Underground telemetry
– Creating complete tunnel-based/mine-wide data networks and/or internet connectivity
– Seamless connection to personnel via VOIP phones, smart devices and tablets
– M2M applications