Hello again, Thank you for all your advice, I did put the K2 in test-mode, connected the headphone-jack with the soundcard and while running CW-get I can do my practice. And with the help of the article from K5FO : Iambic sending I am on my way. Thanks again all. And I enjoy my K2#1959, building went without much problems (ok, I sometimes forgot to read the manual) 73 de PA3BPV, Dick