Here are enlarged screen shots of desktop computer with nothing attached.

Here are PDFs of screen shots. I tried pluuging the computer into a different outlet and using the PcoScope on my desktop. Results for both are included.

Hi and thank you for your post. It could be mains hum? Are you using a laptop? If so try disconnecting the power supply and leave it running on the battery. If the problem does not occur any more then it will be mains hum. Kind regards I removed the mains and a lot of the movement went away, but th...

I recently received the education kit and hooked up my 2205. There was a wave form showing up in PicoScope 6 with no input. Is this normal? I haven't set all of the parameters yet, but thought it odd that with no input there is a wave with lots of what looks like interfernce in it.