%0 Book Section %T The AMY experiment: Microwave emission from air shower plasmas publisher EDP Sciences %D 2016 %U 978-2-7598-9003-3 %@ https://hdl.handle.net/20.500.14352/24924 %X You The Air Microwave Yield (AMY) experiment investigate the molecular bremsstrahlung radiation emitted in the GHz frequency range from an electron beam induced air-shower. The measurements have been performed at the Beam Test Facility (BTF) of Frascati INFN National Laboratories with a 510 MeV electron beam in a wide frequency range between 1 and 20 GHz. We present the apparatus and the results of the tests performed. %~