EMI ventilation panel for Test houses & Wireless device vendors

Ranatec, a part of the Qamcom Technology AB group announced its latest product innovation, the RI 4901 EMI ventilation panel. Developed for test houses and wireless device vendors, the high-performance EMI ventilation panel provides a robust 105 dB shielding efficiency of up to 9 GHz. The new panel has already been delivered to major Telecom customers in Europe and the US. 

Our new RI 4901 high performance EMI ventilation panel puts Ranatec one step closer to be the “one stop shop” for RF-shielding test and measurement, says Magnus Kilian, CEO at Ranatec. The RI 4901 furthers Ranatec’s commitment to providing state-of-the-art, modern products and services to fit the evolving needs of our global customer base.”  

Sold separately or as an accessory to the Ranatec RF-box, the Ranatec RI 4901 EMI ventilation panel is designed for use in the most demanding shielding applications. Delivering up to 9 GHz the shielding efficiency is 105 dB. The panel is designed to fit 80×80 mm standard computer fans.  


  • 105 dB shielding up to 9 GHz 
  • Fit standard fans, 80×80 mm 
  • Easy to mount 


  • Shielding, up to 9 GHz                       105 dB              
  • Shielding, 20 GHz                                90 dB  
  • Shielding, 40 GHz                                70 dB  
  • Dimensions (WxLxT)                  85x85x9 mm 
  • Mass                                                   0.08 kg 
  • Material                                           Aluminium 


The Ranatec EMI ventilation panel is typically mounted on shielded boxes or shielded rooms in combination with a ventilation fan. The ventilation panel enables outstanding ventilation of shielded boxes, while maintaining superior RF/EMI shielding. 


Ranatec is ISO9001:2015 certified and offers specialist services within eight defined domains to a global customer base including the world’s leading electronics manufacturers.