Poynting HELI-40 Circular Polarised Bi-Directional Mine/Tunnel Antenna

Designed for Underground Connectivity

The HELI-40 is purpose-built for mining and tunnel environments where conventional antennas struggle with multipath, bends and reflective surfaces.

With circular polarisation and bi-directional radiation, it enhances signal stability in confined underground spaces.

Optimised for Tunnel Propagation

Operating across:

• 2400–2500 MHz

• 5000–6000 MHz

Peak gain: 4.8 dBic

Circular polarisation (LHCP & RHCP) improves propagation around tunnel bends and reduces signal degradation in non-line-of-sight conditions.

Isolation of < -20dB enhances MIMO performance.

Four-Port 2×2 MIMO Architecture

• 4 ports

• LHCP & RHCP diversity

• RG-141 cables (400mm)

• N-Type (M) connectors

Ideal for vehicle-mounted telemetry, automation and underground IoT.

Ruggedised for Mining Conditions

• IP68 ingress protection

• IK10 impact resistance

• Wind survival up to 220 km/h

• –40°C to +80°C operating range

• Salt spray tested (MIL-STD 810G)

UV-stable ASA radome ensures long-term durability.

Mounting Flexibility

Options include:

• Surface mount (adhesive)

• Threaded spigot

• Optional magnetic mount kit

Designed for vehicle and equipment integration.