Clemens Hopfer is a tech enthusiast - currently residing in Vienna/Austria; predominantly interested in electronics, wireless (mobile) communication, software radio and open source. He actively participates at the Viennese FunkFeuer.at Wireless Community Network since 2006 and received his CEPT1 Amateur Radio license in 2010. While studying at the Viennese Technical University he evolved a main focus on wireless transmission and high frequency engineering.