{"product_id":"pwt-6009710920039","title":"Poynting HELI-21  Circular-Polarised Tunnel  Dual Band WiFi antenna; 2400 to 6000 MHz","description":"\u003ch4\u003eDescription::\u003c\/h4\u003eCompact dual-band tunnel antenna delivering reliable Wi-Fi connectivity in harsh underground environmentsThis high-performance Mini-HELI antenna is purpose-built for mining tunnels  construction shafts and underground corridors where stable connectivity is essential. Despite its compact size  it provides medium-to-high gain  strong signal penetration and dependable bi-directional coverage along tunnel paths. With dual-band Wi-Fi support and circular polarisation options  it is ideal for M2M  IoT  telemetry and automation systems operating in demanding subterranean conditions.Key FeaturesDual-band Wi-Fi operation: Supports 2.4 GHz and 5 GHz for comprehensive underground network coverage.Bi-directional radiation pattern: Radiates effectively in both tunnel directions for consistent end-to-end coverage.Circular polarisation options: Available in LHC and RHC to enhance MIMO performance and improve link reliability.Optimised MIMO decorrelation: Provides strong spatial and polarisation diversity for improved noise resilience and signal consistency.Four-port configuration: Designed specifically for high-performance mining and tunnel communication systems.Compact Mini-HELI form factor: Small footprint with medium-to-high gain  ideal for tight or restricted tunnel installations.Reliable stope penetration: Capable of extending coverage beyond main tunnels into branching stopes.Engineered for underground mobility  telemetry and network extension  this antenna enables dependable Wi-Fi and IoT connectivity across complex tunnel infrastructures.                                                                                     Read more\u003ch4\u003eSpecification:\u003c\/h4\u003eCompact dual-band tunnel antenna with bi-directional coverage  circular polarisation  four-port design and strong gain for reliable underground Wi-Fi  IoT and mining automation.\u003cp\u003e    @90\/36\u003c\/p\u003e","brand":"Poynting","offers":[{"title":"Default Title","offer_id":48552239726847,"sku":"ANT-PY-00028","price":1115.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0498\/8029\/files\/A-HELI-0021-V3-02-Feature-Image-BRKT-47-min__11628.1719537303_eb8e48bd-8d86-4aaf-9d15-6c4786854106.jpg?v=1779260314","url":"https:\/\/phoneinc.com.au\/products\/pwt-6009710920039","provider":":) Phoneinc","version":"1.0","type":"link"}