Thanks guys.
Rick I am sure it will work out eventually. Now just complicate things I also get a grid pattern in some of my darks. This I think is RF or EM in my observatory (see dark frame, the thin vertical lines over the entire frame).
Some things that might be causing this are:
- Computer is sitting on top of the UPS.
- A couple of AC cables (one of which is the camera cable) are coiled loosely
- Ethernet over power system. I have 4 units in the observatory.
Any ideas? I have seen this pattern whilst doing darks and the only things with power were the UPS, the camera, Ethernet and the IP power switches. No dew heaters were on.
I would welcome anyone's ideas here.