Hello Martyn

Thank you very much.
I thought that Channel B is default inactiv.
Now i set it to inactiv and it works

Thanks again.

Michael

Hello, Apologies if this question has been answered before, or if I could have found the answer myself by studying the documentation more closely! I'm having the PicoScope 2205. It's maximum samplerate is 200MS/s --> 5ns. In the ps2000pg.en.pdf is the TIMEBASE describe as a code between 0 and the ma...