Welcome to the Hertz Chamber!
Part of ESA’s technical heart in the Netherlands, the metal-walled ‘Hybrid European Radio Frequency and Antenna Test Zone’ chamber is shut off from all external influences.
Its internal walls are studded with radio-absorbing ‘anechoic’ foam pyramids, allowing radio-frequency testing without any distorting reflections. In addition, this cladding also absorbs sound – making Hertz an eerily quiet place to work.
📸 Edgar Martins