I am posting this here in the hope that other camera builders might have some ideas of what is creating this problem. Note I have posted this in the Computer and Software section as well (because it involves BYEOS) but I suspect it's more likely to be DSLR cooling controller related.
Here is the problem:
I am getting what appears to be electrical interference (moving horizontal flickering lines) showing up on my laptop screen while running BYEOS and on the Focusing and Framing screen. It seems to be coming from the power supply for my DSLR cooler as when I turn it off, or the relay trips out, the interference disappears. It only shows up when the temperature controller switches on the PWM to feed the power to the TEC cooling the camera. This is happening with my new Mono Cold Finger Canon 450D. Strangely this has not been a problem in the past with my OSC 450D (but I only recently started using BYEOS), and until recently when I installed a powered USB3 hub on my pier. I have tried moving cables around to prevent any power supply cable parallel runs with USB cables, but it doesn't seem to work. I also ran the camera cooler off of 12V direct from a battery and I still gets this interference showing up when the TEC is swtiched on by the controller. So it would appear to be unrelated to the AC power pack for the camera controller. This leads me to assume its coming from the camera itself, or related to the shielding in the USB cables or the Hub as they are now located on the pier instead of being separate from the scope/camera direct to the laptop.
Any ideas? It's ruining my imaging.
Please ignore the sensor fogging and artifacts in the attached shot - I am still working out the sensor chamber isolation and it needs to be cleaned.