Contact me via email: felix (at) feldspaten (dot) org
I'm at Freenode in #astroparticle and #itsyndikat. You will find me as ph03nix there.
I have a 24/7 client running, but for reasons I'm not willing to spend 24/7 of my life online. Best to try it during office hours.
In case you want to contact me, I'm quite often online on the OE7XCJ (2m) and OE7XBI repeaters (70cm). My callsign is OE7PHX.