Displays &
Traffic warning systems

Ground radios

Aircraft radio equipment


Transponder receiver x-BNK

  • Legal requirement to introduce a needs-based night marking in German windparks until 01.07.2021
  • Realised through a system that uses transponder signals from aircraft
  • BNK system was developed by Deutsche Windtechnik (DWT) in co-operation with f.u.n.k.e. AVIONICS for this purpose
  • Transponder receiver x-BNK from f.u.n.k.e. AVIONICS is the central component of the overall system
  • x-BNK receives signals from approaching air vehicles
  • Verification of the signals received and automatic activiation of danger fires
  • Certified since September 2020

It is a legal requirement in Germany to equip wind farms with a needs-based night marking until 01.07.2021. This can be realised through a system that uses transponder signals from surrounding aircraft.

In co-operation with f.u.n.k.e. AVIONICS Deutsche Windtechnik has developed a global and independent system for this purpose.

The transponder receiver unit x-BNK, developed by f.u.n.k.e. AVIONICS, represents the core component of the overall system. This device receives signals from approaching air vehicles, performs a respective verification and activates the danger fire if needed.

At the end of an intensive test campaign over several months, including as well overflight testing via a drone around a wind turbine,  the system finally received certification on the 17th of September 2020 through airsight GmbH, the first official testing authority named by the Federal Ministry of Transport and Digital Infrastructure.

This certification proves once more the profound know-how and long lasting experience of f.u.n.k.e. AVIONICS in the field of Mode S transponder technology. The system has now entered production stage and and is ready for widespread installation in the years to come. The system is sold exclusively via our partner Deutsche Windtechnik (