Leuterer, F., Wagner, D., Manini, A., Monaco, F., Muenich, M., Ryter, F., et al. (2006). First tests of the new multi-frequency ECRH system at ASDEX Upgrade. Talk presented at 33rd IEEE International Conference on Plasma Science (ICOPS). Traverse City, MI. 2006-06-04 - 2006-06-08.