The HELI-21 is a versatile, high-performance antenna, specifically designed for challenging underground environments. Its ability to provide robust and reliable connectivity makes it an invaluable asset in modern mining operations and other tunnel-based applications
The HELI-21 is a pivotal member of the Mini-HELI antenna series, standing out for its compact size relative to its larger counterparts in the HELI series. Despite its miniaturization, it delivers medium to high gain, making it particularly suitable for mining tunnels where IoT/M2M connectivity is essential. Additionally, it can effectively provide coverage into the stopes. This antenna is a dual-band model, operating seamlessly on both 2.4 GHz and 5 GHz Wi-Fi bands. Its bi-directional radiation pattern is specifically tailored for the unique demands of mining and other tunnel environments. The HELI-21 is commonly employed for deploying IoT applications within tunnels to facilitate telemetry and mine automation.
Features:
- Dual-Band Operation: Supports both 2.4 GHz and 5 GHz frequencies, ensuring comprehensive Wi-Fi coverage.
Bi-Directional RadiationEffectively radiates in both directions, ideal for tunnel environments.
- Left and Right-Hand Circular Polarisation: Available in both LHC and RHC polarisations, enhancing MIMO deployment and RF reliability in tunnels.
- Optimal Decorrelation: Offers superior performance through polarisation differences and spatial diversity between antenna elements.
- Four-Port Design: Specifically engineered for mining and tunnel applications requiring rapid network extension.
Applications:
- Network Extension in Tunnels: Ideal for supplementing fibre/leaky feeder cable hotspots, enhancing mobility and extending networks to inaccessible areas.
- Underground Telemetry and Automation: Facilitates a range of underground telemetry and automation applications.
- Wide Tunnel Data Networks: Enables the creation of comprehensive underground data networks and internet/LTE connectivity.
- Seamless Connectivity: for Personnel provides uninterrupted connection to cellular phones, smart devices, and tablets used by personnel in underground settings.
