Hi Robin,

Yes. I tried an external signal generator and the trace was steady up past 100 kHz, so your thought that it might be the generator is spot on.

Feel free to start another thread or pm me.

Thanks

The settings file is attached. Strangely, the the web form wont allow attached files with the .pssettings extension. So I zipped it in windows.

Thanks,

Tom

Can you post a settings file saved when you get this jitter? Thanks Robin, I'll get back to the lab this evening to post the settings. In the meantime I can say that the sync issue is seen with ch A connected to the output. auto trigger, auto setup, defaults otherwise, generator running square wave...

Hi Here is an updated DLL file that you can copy to your PicoScope folder. This should solve the triggering problem. Robin I see triggering "jitter" on my 2203 with PicoScope 6.2.2.2 and I wonder if this could be the same problem. I imagine that the 3000.dll will not help 2000 series installations....