restorer-john
Grand Contributor
They do have an RF anechoic chamber but I cant find any reference to an acoustic. chamber
Shall I ring my mates at ASIO/ASD- they've got a nice one in the Ben Chifley building basement in Canberra?
https://www.abc.net.au/news/2020-08-21/inside-asio-secure-building-chamber-of-secrets/12577352